বিভিন্ন রাসায়নিক পদার্থ ও তাদের কাজ

mahadi mahadi
Feb 18, 2023 - 14:02 Updated: Feb 23, 2023 - 16:10
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বিভিন্ন রাসায়নিক পদার্থ ও তাদের কাজ
Sl Chemical Name Description
1 Abscisic acid Abscisic acid is a naturally occurring hormone in plants.
2 Acenaphthylene Acenaphthylene is a low molecular weight, 2-ring polycyclic aromatic hydrocarbon (PAH).
3 Acetaminophen Acetaminophen is the active ingredient in Tylenol.
4 Acetate Sodium acetate forms white crystals in powder form.
5 Acetic acid Acetic acid is the compound responsible for the pungent characteristic odor and sour taste of vinegar.
6 Acetone Acetone is a colorless liquid that has a distinctive smell and taste.
7 Acetophenone Acetophenone is a colorless liquid or white crystal, with characteristic odor.
8 Acetyl peroxide Acetyl peroxide is used as a catalyst for resins.
9 Acetyl salicylic acid Aspirin is an over-the-counter analgesic.
10 2-Acetylaminofluorene 2-Acetylaminofluorene is white-colored solid, man-made chemical compound used in medicines and fabric dyes.
11 Acetylcholine O-Acetylcholine is a neurotransmitter.
12 Acetylcholine chloride O-Acetylcholine is a neurotransmitter.
13 Acetylene Acetylene is an odorless and colorless gas with a garlic-like odor.
14 Acroleic acid Acrylic acid is a plant molecule that is produced by marine algae and used to make plastics.
15 Acrylamide Acrylamide is a toxin and possible carcinogen used in water treatment.
16 Acrylic acid Acrylic acid is a plant molecule that is produced by marine algae and used to make plastics.
17 Acrylonitrile Acrylonitrile is a toxin and possible carcinogen used in industrial manufacturing.
18 α-Actinin Actin aids in providing structure and shape to animal, plant, and fungal cells.
19 Acyclovir hydrate A viral inhibitor commonly used as a medication for HIV and Aids patients.
20 Adenine Adenine is one of the two purine bases used in forming nucleotides DNA and RNA.
21 Adenosine Adenosine is a purine nucleoside.
22 Adipic acid Adipic acid is used as an acidulant in non-alcoholic beverages, gelatins and puddings.
23 Adrenaline Adrenaline is a hormone synthesized in the adrenal medulla.
24 Adrucil 5-Fluorouracil is an antimetabolite used to treat cancer.
25 Advil Ibuprofen is a very popular drug used to assist in reducing inflammatory response.
26 Alanine Alanine is a non-essential amino acid.
27 L-Alanine Alanine is a non-essential amino acid.
28 Aldrin Aldrin is a banned insecticide and a persistent organic pollutant.
29 Allene Allene is a chiral compound.
30 α-Tocopherol Vitamin E can be used to prevent and treat arteriosclerosis.
31 Aluminum bromide Aluminum bromide is flammable and corrosive.
32 Aluminum fluoride Aluminum fluoride is used as coating material for mirrors and lasers.
33 Aluminum monoxide Aluminum monoxide has been identified in the infrared spectrum and it is believed to exist in circumstellar matter.
34 Amidox Amidox is a widely used herbicide.
35 α-Aminobutyric acid Aminobutyric acid (ABA) is a non-protein amino acid that can protect certain plants from pathogens.
36 DL-3-Aminoisobutyric acid monohydrate Aminoisobutyric acid monohydrate is a non-protein amino acid, which posses an antifungal activity.
37 Ammonium ion Ammonium is an important ion in the fertilizer industry.
38 Amoxone Amoxone is a widely used herbicide.
39 Amphidinolide B1 cyclohexane solvate Amphidinolide B1 has been isolated from dinoflagellates, amphidinium.
40 Amphidinolide H Amphidinolide H is a potential anti-cancer agent.
41 Anatase Anatase is a rare form of titanium oxide that is found in igneous rocks.
42 Androsterone Androsterone is an androgen or male sex hormone.
43 Anhydrite Anhydrite is the dehydrated from of the mineral Gypsum.
44 Anhydroanguibactin Anhydroanguibactin was isolated from the fish pathogen Vibrio anguillarum.
45 Anhydroscymnol Anhydroscymnol is the product of alkaline hydrolysis of scymnol sulfate.
46 Aniline Aniline is used in the manufacture of resins, varnishes, perfumes and printing inks.
47 Annulin A Annulin A has been isolated from the marine hydroid Garveia annulata.
48 Anthracene Anthracene, a PAH, is a pollutant used to manufacture dyes.
49 Antimony Antimony is a Silver-white, lustrous, and hard metal.
50 Apatite Apatite is found in all rock types.
51 Apophyllite Apophyllite specimens are found in ancient lava and basalt flows.
52 Aqua-kleen Aqua-kleen is a widely used herbicide.
53 Aquamarine Aquamarine is a gorgeous bluish-green gemstone found commonly in Brazil.
54 Aragonite Aragonite is a mineral in the calcium carbonate group, and is the cousin of calcite.
55 Arginine Arginine is an amino acid with several important functions.
56 L-Arginine hydrobromide monohydrate Arginine is an amino acid with several important functions.
57 Arkelite Arkelite is the main component of cubic zirconium.
58 Arsenic Arsenic is a brittle greyish crystalline solid.
59 Arsenopyrite Arsenopyrite, aka Mispickel, is an abundant mineral throughout the world.
60 Arsine Arsine is a highly toxic gas with a garlic-like or fishy odor that was used as war gas.
61 Ascidiacyclamide benzene solvate Ascidiacyclamide is a cyclic octapeptide containing the amino acids thiazole and oxazoline.
62 Ascorbic acid Vitamin C is an essential nutrient that is used in many biochemical pathways in the human body.
63 Asparagine Asparagine is a non-essential amino acid and is the β-amide of aspartic acid.
64 Aspartame Aspartame is a common artificial sweetener.
65 Aspartic acid Aspartate is a nonessential amino acid that is produced in the liver.
66 Aspirin Aspirin is an over-the-counter analgesic.
67 Aspirochlorine Aspirochlorine is a natural product derived from glycine.
68 ATP ATP is short for adenosine triphosphate which is a nucleotide that has a ribose sugar and three phosphate groups.
69 AZT AZT is one of the most commonly used anti-HIV drugs.
70 Azurite Azurite is a mineral closely associated with malachite.
71 Bacteriopheophytin A Pheophytin is a chlorophyll derivative involved in photosynthesis.
72 Barite Barite is a very common mineral that is usually white or colorless.
73 Barium chloride Barium chloride exists as a toxic, colorless crystal.
74 9-BBN 9-BBN is extremely susceptible to air oxidation and may spontaneously combust.
75 Benitoite Benitoite is the state gem of California.
76 Benzene Benzene is an air-borne hydrocarbon that is produced by burning natural products.
77 Benzoic acid Benzoic acid occurs as white needle shaped crystals found naturally in gum benzoin.
78 Benzophenone Benzophenone is an aromatic compound with a fragrance like geranium.
79 Benzo(a)pyrene Benzo(a)pyrene is commonly found in cigarette smoke, coal tar and fuel exhaust.
80 p-Benzoquinone p-Benzoquinone can be highly toxic and fatal if swallowed, inhaled or absorbed through the skin.
81 Benzothiazole Benzothiazole is used as a food additive despite its unpleasant odor.
82 Beryl Beryl is colorless in pure form however impurities make it sought after gemstones like emeralds and aquamarines.
83 Beryl Aquamarine is a gorgeous bluish-green gemstone found commonly in Brazil.
84 Biacetyl 2,3-butanedione, also known as diacetyl, is the compound responsible for giving butter, butterscotch, and some beers, their flavor.
85 Bicyclomycin Bicyclomycin is an antibacterial drug that acts as an inhibitor of the ρ transcription terminator factor.
86 Biotin Vitamin H is water-soluble and belongs to the group of essential B vitamins.
87 Biphosphate ion The biphosphate ion occurs naturally and is important for cell functions in the body.
88 Bismuth Bismuth is a brittle greyish-white metal with a pinkish tinge.
89 Bisulphite ion Bisulfite is an ion used in the brewing industry and in the paper industry.
90 Boracite Boracite is an industrially important ore of boron.
91 Borax Borax is an industrially important mineral and a boron source.
92 Borazine Borazine, the inorganic analog of benzene, is a valuable precursor to hexagonal and cubic boron-nitride.
93 Boron Boron is solid at room temperature.
94 Boron trifluoride Boron trifluoride is a common lewis acid.
95 Boron trifluoride etherate Boron trifluoride is a common lewis acid.
96 Brazilianite Brazilianite is one of a few phosphate gems.
97 Brevetoxin B Brevetoxin is a harmful marine neurotoxin found in algae which causes poisoning of humans and death to marine life when ingested.
98 Bromoaureol acetate Bromoaureol acetate is an unusual sesquiterpene-hydroquinone derivative found in a marine sponge.
99 1-Bromo-1-chloro-ethene Bromochloroethene is a halogenated hydrocarbon that it is believed contributes to the depletion of ozone layer.
100 Bromo-chloro-fluoro-methane Bromochlorofluoromethane is a chiral molecule.
101 Bromopentafluoride Bromine pentafluoride is used as a fluorinating agent to produce fluorocarbons.
102 Brooklax Phenolphthalein consists of three phenol rings attatched to a common carbon atom.
103 Buckminsterfullerene Buckminsterfullerene is a spherical shaped allotrope of carbon discovered in 1985.
104 BuLi N-Butyl Lithium is one of the most highly used organolithium compounds.
105 Bupropion Bupropion is an anti-depressant of the amino-ketone class.
106 Butylbenzoic acid Butylbenzoic acid is a white to light yellow crystalline flakes used as intermediate of pharmaceuticals.
107 Butyric acid n-Butyric acid is a viscous, foul-smelling, liquid carboxylic acid.
108 C60 Fullerene  Buckminsterfullerene is a spherical shaped allotrope of carbon discovered in 1985.
109 C70 Fullerene Fullerenes are spherical, cagelike molecules consisting of annelated carbon five - and six rings.
110 Caffeine A stimulant found in drinks and used in pharmaceuticals.
111 Calcite Calcite is the most common form of calcium carbonate.
112 Calcium hydride Calcium Hydride is a cold-trapped molecule that is investigated for applications in laser spectroscopy.
113 Calcium hydroxide Calcium hydroxide can be found in plasmas, flames and in circumstellar shells.
114 Calcium monoxide Calcium monoxide can be colorless cubic crystals; white or grayish white lumps, or granular powder.
115 Calcium sulfide Calcium sulfide has an unpleasant smell like rotten egg.
116 Caledonite Caledonite is a blue green mineral which was discovered in Caledonia, now known as Scotland.
117 Calyculin A Calyculin A was initially isolated from the marine sponge Discodermia calyx.
118 Camphor Camphor is a component in many analgesic, sore muscle, and chest rubs and in natural cough suppressants.
119 Cantharidin Cantharidin is a chemical derived from the green blister beetle used for wart treatment.
120 ε-Caprolactam Caprolactam was discovered in 1886 and means goat s milk.
121 Captan Captan is a General Use Pesticide (GUP).
122 Carbon acid gas Carbon dioxide, CO2, is one of the gases in our atmosphere, which is uniformly distributed over the earth's surface.
123 Carbon dioxide Carbon dioxide, CO2, is one of the gases in our atmosphere, which is uniformly distributed over the earth's surface.
124 Carbon suboxide Carbon suboxide is a foul-smelling lachrymatory gas.
125 Carbon tetrachloride Carbon tetrachlooride (CCl4), also called tetrachloromethane, is a simple organic halogen compound.
126 Carbonate The acid that causes the tart taste of carbonated beverages.
127 Carbonate ion Carbonates are widely used, dependent on the cation, as pharamceuticals, detergent, and pesticides.
128 Carbonic acid Carbonic acid is a product in the fermentation of liquors.
129 Carbonic anhydride Carbon dioxide, CO2, is one of the gases in our atmosphere, which is uniformly distributed over the earth's surface.
130 Carletonite Carletonite is a rare mineral found only in Mt Saint-Hilaire, Quebec, Canada.
131 Carnallite Carnallite is a white or reddish mineral used as a fertilizer and as a source of potassium and magnesium.
132 R-Carnitine R-Carnitine is an important biological molecule that plays a role in fat metabolism.
133 β-Carotene β-carotene is found in many plants and has a high nutritional value.
134 L-Carvone This compound is used as a flavoring and perfume agent.
135 Caryophyllene Caryophyllene is an aromatic compound common in many substances.
136 Cassiterite Cassiterite is a mineral with high luster.
137 Catechol Catechol occurs naturally in fruits and vegetables.
138 Cavansite Cavansite is an electric or ocean blue mineral.
139 Celestine Celestine is a sky blue mineral that is structurally and often physically similar to Barite.
140 Cembranolide Cembranolide is a marine natural product isolated from soft coral with antitumor activity.
141 Cerussite Cerussite crystals can be found twinned in portions of ore deposits.
142 Chalcanthite Chalcanthite is a bluish mineral that is water soluble.
143 Chalcopyrite Chalcopyrite is a brassy yellow mineral that tarnishes to irridescent blues, greens, yellows and purples.
144 Chlorate Chlorate is a very strong oxidizing agent.
145 Trans-Chlordane Chlordane is a constituent of pesticides now largely banned and a UN-designated "dirty dozen POP."
146 Chlordene Chlordene is an intermediate in the manufacture of insecticides chlordane and heptachlor.
147 Chlorine monoxide Chlorine monoxide plays an important role in the breakdown of the stratospheric ozone.
148 Chlorocresol Chlorocresol is used as a preservative for glues, paints, creams, inks and textiles.
149 Chloro-difluoro-methane Chlorodifluoromethane is a highly useful compound but has severe toxic effects.
150 Chloromethane Chloromethane is a natural substance found in air, water, and soil that is toxic at high levels.
151 Chlorophyll Chlorophyll is the molecule that absorbs sunlight and is responsible for the photosynthesis process.
152 Chlorosulfuric acid NULL
153 Cholecalciferol Vitamin D3 is one of the most important biological regulators of calcium metabolism.
154 Cholesterol Cholesterol is a steroid alcohol (sterol) important to animal cell structure and related to coronary health.
155 Cholic acid acrylonitrile clathrate Acrylonitrile is a toxin and possible carcinogen used in industrial manufacturing.
156 Chromate Salts of chromate are brightly colored yellow to red compounds.
157 Chromium Chromium is a naturally occurring element that has been determined to be a human carcinogen.
158 Chromium trioxide Chromium trioxide reacts with most organic material in a violent and often explosive fashion.
159 Chrysene Chrysene is a colorless crystalline solid used primarily in research.
160 Chrysoberyl Chrysoberyl is a rare oxide mineral.
161 Cinnabar Cinnabar is a bright scarlet or blood red to a brick red colored mineral with a submetallic luster.
162 Cinnamic acid Cinnamic acid derivatives are important metabolic building blocks in the production of lignins for higher plants.
163 Cinnamon Cinnamaldehyde is the primary active component in cinnamon.
164 Cisplatin Cisplatin is an anticancer drug that is used to treat ovarian, testicular, and bladder cancers.
165 Citric acid Citric acid is a component of many types of fruits.
166 Clinoclase Clinoclase has a beautiful dark blue to dark greenish blue color.
167 Cocaine A strong central nervous system stimulant that enhances alertness and restrains appetite.
168 Codeine Codeine is the most widely used, naturally occurring narcotic in medical treatment.
169 Pseudo-conhydrine Pseudo-conhydrine is found in hemlock, a poisonous herb of the parsley family.
170 Collagen Collagen composes twenty five percent of all protein in the human body.
171 Copiapite Copiapite is a hydrous sulfate.
172 Copiapite ferrian Copiapite is a hydrous sulfate.
173 Copper Copper is a very common, distinctively colored element.
174 Coronene Coronene is a polycyclic aromatic hydrocarbon (PAH) containing seven aromatic carbon rings.
175 Cortisol Cortisol is a steroid hormone secreted in response to physical or psychological stress.
176 Cortisone Cortisone injections can be used to treat inflammation of the body.
177 Corundum Corundum is the second hardest natural mineral.
178 Coumarin Coumarin is usually associated with the smell of newly-mown, sweetclover hay. It has a very sweet smell, but a very bitter taste.
179 Creatine Creatine is an amino acid that is made in the body by liver and kidneys.
180 m-Cresol m-Cresol, a possible toxic carcinogen, has many applications in industry.
181 p-Cresol p-Cresol has a phenolic odor and is slightly soluble in water.
182 Crocoite Crocoite is a rare chromate mineral that is orange-red in color.
183 Cryolite Cryolite is added to fireworks to produce yellow-colored explosion.
184 Cucurbitine Cucurbitine is used for the preparation of cosmetics and pharmaceuticals.
185 Cucurbitine perchlorate Cucurbitine is used for the preparation of cosmetics and pharmaceuticals.
186 Cumene hydroperoxide Cumene hydroperoxide is thermally unstable.
187 Curcumin Curcumin is found in the root of the turmeric plant Curcuma longa.
188 Cyanide ion The central nervous system is the primary target organ for cyanide toxicity.
189 Cyanoacetylene Cyanoacetylene was detected in interstellar space in 1970.
190 Cyanoacrylate  Cyanoacrylate is part of super glue.
191 Cyanogen Cyanogen is a colorless gas with almond-like odor, which is acrid and pungent in high concentrations.
192 Cyclobutane Cyclobutane is an aliphatic cyclic hydrocarbon.
193 Cyclohexane Cyclohexane is a naturally occurring hydrocarbon.
194 Cyclomarin A Cyclomarin A is found in sea dwelling bacteria.
195 Cyclomarin A diacetate ethyl acetate solvate Cyclomarin A is found in sea dwelling bacteria.
196 Cyclopropane Cyclopropane is used as an anesthetic and as a precursor to many pharmaceuticals.
197 Cyclopropane carboxylic acid Cyclopropanecarboxylic acid is a clear liquid used in organic synthesis.
198 Cyclopropenylidene Carbenes are highly reactive and play an important role as intermediate in organic synthesis.
199 Cycloxazoline Cycloxazoline is a marine natural product.
200 Cymobarbatol Cymobarbatol is an antimutagenic agent isolated from the marine algae Cymopolia barbata.
201 Cysteine Cysteine is a sulfur containing, non-essential amino acid.
202 Cytidine Cytidine is a pyrimidine nucleoside.
203 Cytosine Cytosine is a base used in storing and transporting genetic information.
204 2,4 D 2,4-D is a widely used herbicide.
205 D-Glucitol Sorbitol is a bulk sweetner with a pleasant taste. It is a suitable substitute for sugar.
206 D-(-)-Luciferin Luciferin is a pigment occurring in luminescent organism as fireflies.
207 Dactylallene Dactylallene was isolated from the digestive gland of the anaspidean mollusc Aplysia dactylomela.
208 p,p-DDE DDE is a breakdown product of the notorious pollutant DDT.
209 DDT DDT or 1,1-bis(p-Chlorophenyl)-2,2,2-trichloroethane was a popular insecticide commonly used in the 1940s through to the 1970s.
210 Decachlorobiphenyl Decachlorobiphenyl is a PCB which was found to be an industrial pollutant.
211 Decamine Decamine is a widely used herbicide.
212 Dechlorane Mirex is a pesticide banned in most of the world.
213 Dechlorane Plus  Dechlorane Plus is a flame retardant containing chlorine.
214 Dechlorane Plus (stereo isomer)  Dechlorane Plus is a flame retardant containing chlorine.
215 Decopur Decopur is a widely used herbicide.
216 Diacetylene Diacetylene has been observed in circumstellar envelopes and in the atmosphere of Saturn's largest moon, Titan.
217 Diamond The diamond is a valuable mineral.
218 Diazepam Diazepam is a compound that belongs to a group of benzodiazepine tranquilizers.
219 Diazomethane Diazomethane is a yellow gas with a musty odor.
220 Dibenzoyl peroxide An organic compound that is a component of hardener paste.
221 6,6'-Dibromo-indigo Dibromoindigo in solution is blue but when used as a dye on wool the color is purple.
222 Dicamba or 3,6-Dichloro-2-methoxybenzoic acid  Dicamba is part of many broadband herbicides.
223 Dicarbon monoxide Dicarbon Monoxide is a carbonyl carbene, which are building blocks in the synthesis of organic compounds.
224 2,2'-Dichlorobiphenyl Dichlorobiphenyl is a PCB which was found to be an industrial pollutant.
225 4,4'-Dichlorobiphenyl Dichlorobiphenyl is a PCB which was found to be an industrial pollutant.
226 Dichloro-difluoro-methane Dichlorodifluoromethane is a gas that was used as a refrigerant.
227 1,2-Dichloroethane 1,2-Dichloroethane is a clear, colorless, heavy, flammable, oily liquid with a pleasant chloroform- like odor.
228 1,2-Dichloronapthalene 1,2-Dichloronaphthalene is a polychlorinated aromatic hydrocarbon no longer industrially produced due to its toxicity.
229 1,5-Dichloronapthalene 1,5-Dichloronaphthalene is a polychlorinated aromatic hydrocarbon no longer industrially produced due to its toxicity.
230 2,4-Dichlorophenoxyacetic acid 2,4-Dichlorophenoxyacetic Acid is a widely used herbicide.
231 Dichromate ion Dichromate is an ion with a 2- charge used as an oxidizing agent.
232 Dieldrin Dieldrin is an organochlorine hydrocarbon that arises when the insecticide aldrin rapidly degrades in the environment under the action of sunlight or bacteria.
233 Dihydroxyacetone phosphate DHAP is an intermediate molecule involved in processes occurring in the body as glycolysis and gluconeogenesis.
234 Diketene Acetyl ketene freezes at 20 degrees F.
235 Dimethyl sulfide Dimethyl sulfide gives off the smell of decaying vegetables and at other times can smell like sweet corn.
236 Dimethylpyrazine 2,5-dimethylpyrazine is a colorless liquid that is soluble in water and organic compounds.
237 Dimethyltryptamine Dimethyltryptamine is a nautral hallucinogen found in numerous plants.
238 Dinitrogen tetroxide Dinitrogen tetroxide is an oxidizer and highly toxic and corrosive gas.
239 Dinitrophenol 2,4-Dinitrophenol is the most important of dinitrophenol's six possible isomers, resembling a yellow sand-like crystalline solid.
240 Dinitrotoluene Dinitrotoluene is a highly reactive chemical used in the production of munitions and explosives.
241 Dioxane Dioxane is colorless liquid with a faint, pleasant odor.
242 Dioxin TCDD or 2,3,7,8-Tetrachlorodibenzo-p-dioxin is a chemical known to cause health problems.
243 1,2-Diphenylhydrazine Diphenylhydrazine can be converted into benzidine, a known human carcinogen.
244 Di-t-butyl-peroxide Di-tert-Butyl Peroxide is a colorless to yellow liquid, with characteristic odor.
245 Diuron Diuron is a substituted urea herbicide.
246 Divinyl acetylene Divinyl Acetylene belongs to Class-III peroxidizable compounds, which forms peroxides upon aging.
247 DL-3-Aminoisobutyric acid monohydrate Aminoisobutyric acid monohydrate is a non-protein amino acid, which posses an antifungal activity.
248 Dodecanedioic acid Dodecanedioic acid is a white crystalline powder incompatible with strong oxidizing agents and reducing agents.
249 Dolomite The limestone Dolomites in northern Italy are one of Europe's greatest natural sites.
250 Domeykite Domeykite is a semi-metal alloy used as a minor ore of copper and for ornamental purposes.
251 Durdenite Emmonsite is one of the few minerals which contain tellurium.
252 Durotox PCP is a white crystalline powder that is soluble in water or alcohol.
253 Dynamite Dynamite is the most stable of all high explosives.
254 Dysamide C Dysamide C is natural product isolated from a marine sponge Dysidea fragilis.
255 Ecstasy MDMA is a synthetic amphetamine derivative used predominantly by humans for recreational purposes.
256 Emmonsite Emmonsite is one of the few minerals which contain tellurium.
257 Endrin Endrin is an organochlorine pesticide that was once used to kill insects on cotton, rice, and corn, and to control rodents in orchards.
258 Epinephrine Adrenaline is a hormone synthesized in the adrenal medulla.
259 ε-Caprolactam Caprolactam was discovered in 1886 and means goat s milk .
260 Epsomite Epsomite, known as the epsom salt, was created for medicinal purposes.
261 Erythrite Erythrite has an unusual and unique bright red-purple color very attractive to collectors.
262 Erythromycin Erythromycin is an antibiotic that is used for several purposes.
263 Estradiol Estradiol is a sex hormone.
264 Estrol Estrone is a sex hormone.
265 Estrone Estrone is a sex hormone.
266 Ethane Ethane is the simplest structural form of a hydrocarbon.
267 Ethane carboxylic acid Acrylic acid is a plant molecule that is produced by marine algae and used to make plastics.
268 Ethanol Ethanol is used throughout the world.
269 Ethyl alcohol Ethanol is used throughout the world.
270 Ethyl ether Divinyl ether is a colorless low boiling liquid.
271 Ethyl maltol Ethyl maltol is a flavor enhancer that is safe, non-toxic, and highly used.
272 Ethylene Ethylene is a simple but highly useful organic chemical.
273 Ethylene carboxylic acid Acrylic acid is a plant molecule that is produced by marine algae and used to make plastics.
274 Ethylene glycol Ethylene glycol used to create artificial smoke or fog used in theatrical productions.
275 Ethylene oxide EtO is toxic, flammable and highly reactive.
276 Ferredoxin Ferredoxin is a reducing agent used in production of bioelements.
277 Ferric chloride Ferric chloride is a red-orange solid that has hygroscopic properties.
278 Ferric oxide Ferric oxide color changes with increasing particle size from light red to dark violet.
279 Ferrous chloride Ferrous chloride is a pale greenish salt-like crystal or powder, which is soluble in water.
280 Fluoranthene Fluoranthene is a component of diesel exhaust.
281 Fluorapatite Apatite is found in all rock types.
282 Fluorene Fluorene is a component of corn silk, diesel exhaust, and dyestuffs.
283 Fluorite Fluorite is thermo-luminescent, that is it glows when heated.
284 5-Fluorouracil 5-Fluorouracil is an antimetabolite used to treat cancer.
285 Fluoxetine Fluoxetine, known as Prozac, is a SSRI-type antidepressant.
286 Fool's Gold Chalcopyrite is a brassy yellow mineral that tarnishes to irridescent blues, greens, yellows and purples.
287 Formic acid Formic acid is a colorless liquid with a pungent a penetrating odor and sour taste.
288 Fructose Fructose is the primary sugar found in fruits.
289 Fructose-6-phosphate Fructose-6-Phosphate is a phosphorylated form of fructose commonly found in plant cells and animal tissues.
290 C70 Fullerene Fullerenes are spherical, cagelike molecules consisting of annelated carbon five - and six rings.
291 Fumaric acid Fumaric acid is used as a substitute of tartaric acid in beverages and baking powders.
292 Fumiquinazoline C Fumiquinazoline C was isolated from the gastrointestinal tract of the fish Pseudolabrus japonicus.
293 Fumiquinazoline C acetone solvate Fumiquinazoline C was isolated from the gastrointestinal tract of the fish Pseudolabrus japonicus.
294 Furaldehyde Furfural is a colorless liquid that has a pleasant, almond-like aromatic odor; upon exposure to air it turns dark brown.
295 2-Furoic acid 2-Fuoric acid is an alcaloid found in Erythroxylum dekindtii, a plant similar to Erythroxylum coca.
296 Galacturonic acid Galacturonic acid prepared from pectin can be used to synthesize vitamin C.
297 Galena Galena is the main source of lead and is a very soft mineral.
298 Gallic acid Gallic acid is a colorless, crystalline, organic acid found in gallnuts, sumach, tea leaves, oak bark, and various other plants.
299 Gallic acid monohydrate Gallic acid is a colorless, crystalline, organic acid found in gallnuts, sumach, tea leaves, oak bark, and various other plants.
300 Garnet Garnet is an abundant gemstone.
301 Gaspeite The lime green mineral Gaspeite was first found in the town Gaspeite in Quebec, Canada.
302 Germane Germane is a colorless, toxic and flammable gas.
303 D-Glucitol Sorbitol is a bulk sweetner with a pleasant taste. It is a suitable substitute for sugar.
304 Glucocorticoid Desoxymethasone is a topical administered corticosteroid.
305 Glucose Glucose is the most common monosaccharide.
306 Glucuronic acid Glucuronic acid is a needle-shaped crystal derived from gum acacia.
307 Glutamate Glutamate is one of two acidic amino acids.
308 Glutamic acid Glutamate is one of two acidic amino acids.
309 Glutamine Glutamine, a nonessential amino acid, is an abundant protein building block found in both plants and animals.
310 Glutaric acid Glutaric acid is used for the manufacture of polyamides and polyesters.
311 Glycine Glycine is a non-essential amino acid that helps to convert potential toxic substances into harmless forms.
312 Gold Gold is a soft and valuable metal.
313 Graphite Graphite is a polymorph of the element carbon.
314 Guanidinium nitrate Guanidinium nitrate is crystalline powder used in medicine as muscle stimulant.
315 Guanine Guanine is a purine base found in nucleic acids such as DNA and RNA.
316 Guanosine Guanosine is a purine nucleoside.
317 Gypsum Gypsum is a white, yellow, or colorless mineral that is mainly used to produce plaster.
318 Halite Halite is one of many substances that are essential for human life.
319 Halloysite Halloysite clays are used to make the highest quality porcelain.
320 Halomon Halomon is a marine toxin that displays anti-tumor activity.
321 Hardystonite Hardystonite is a white to pink mineral that fluoresces, dark purple, under UV light.
322 HCB HCB is a persistent organic pollutant.
323 Hematite Hematite is the principle ore of iron used in the manufacture of steel.
324 Heptachlor Heptachlor is ranked one of the most hazardous compounds to ecosystems and human health.
325 Heptachlor epoxide Heptachlor epoxide is formed from the pollutant heptachlor in the environment.
326 Hessite Silver telluride is a soft, steel-gray, lustrous mineral.
327 HEX Hexachlorocyclopentadiene is precursor for manufacturing pesticides, flame retardants, resins, dyes, pharmaceuticals, and plastics.
328 Hexachlorobenzene HCB is a persistent organic pollutant.
329 Hexachlorocyclohexane Gamma-HCH is used as a commercial insecticide in fruit and vegetable crops.
330 Hexachlorocyclopentadiene Hexachlorocyclopentadiene is precursor for manufacturing pesticides, flame retardants, resins, dyes, pharmaceuticals, and plastics.
331 Hexafluorosulfide Sulfur hexafluoride is a unique gas due to its chemical inertness and stability.
332 Hexahydrobenzene Cyclohexane is a naturally occurring hydrocarbon.
333 Hexane Hexane is a colorless, volatile liquid with a mild, gasoline-like odor.
334 Histidine Histidine is a non-essential amino acid, although it is sometimes essential for children.
335 (-)-Histrionicotoxin Histrionicotoxin is a poison that comes from a small brightly colored frog, called Dendrobates Histrionicus.
336 Honulactone D Honulactone D was isolated from the Indonesian marine sponge Strepsichlordaia aliena.
337 Hyaluronidase Hyaluronidase is an enzyme that can be purified from bee and snake venom.
338 Hydrated iron tellurite Emmonsite is one of the few minerals which contain tellurium.
339 Hydrazine Hydrazine is a strong reducing agent.
340 Hydrochloric acid (if in aqueous solution) Hydrochloric acid is a colorless to slightly yellow fuming liquid with a pungent and irritating odor.
341 Hydrogen bromide Hydrogen Bromide is a component of volcano gas.
342 Hydrogen cyanide Cyanide is a chemical asphyxiant; it stops the tissue from utilizing oxygen which makes it a potentially fatal poison.
343 Hydrogen fluoride Hydrogen fluoride can be a colorless gas or a fuming liquid with a strong an irritating odor.
344 Hydrogen iodide Hydrogen iodide is used for its expectorant action in chronic bronchitis and bronchial asthma.
345 Hydrogen peroxide Peroxide is an environmental alternative to chlorine based bleaches.
346 Hydrogen selenide Hydrogen Selenide is used in doping as mix for preparation of semiconductor materials.
347 Hydrogen sulfide Hydrogen Sulfide is a colorless gas with a strong odor of rotten eggs and sweetish taste.
348 Hydronium Hydronium forms in the presence of hydrogen ions and water.
349 Hydroxide ion The hydroxyl radical is a simple compound that when combined with metals usually forms bases like NaOH.
350 p-Hydroxybenzaldehyde p-Hydroxybenzaldehyde is claimed as antitumor agent without side effects.
351 m-Hydroxybenzoic acid m-Hydroxybenzoic acid is used for the preparation of biocides, pharmaceuticals, antiseptics, dyes and plasticizers.
352 p-Hydroxybenzoic acid p-Hydroxybenzoic acid is a food preservative and is used as stabilizers in cosmetic preparations.
353 Hydroxyisobutyric acid Hydroxyisobutyric acid serves as intermediate for pharmaceuticals, agro-, and photochemicals.
354 Hypochlorite Hypochlorite is produced when chlorine is added to water.
355 Hyposulfite Sodium hyposulfite is used in laboratories for deoxygenation of samples.
356 Ibuprofen Ibuprofen is a very popular drug used to assist in reducing inflammatory response.
357 Indole Indole is a bicyclic heteroaromatic compound.
358 Inesite Inesite is a rose colored mineral often mistaken for rhodochrosite.
359 Iodine pentafluoride Iodine pentafluoride is a hexa-atomic interhalogen.
360 Iron Iron is the second most abundant metal in earth's crust.
361 Iron monosulfide Iron monosulfide form colorless hexagonal crystals when pure.
362 Iron monoxide Iron oxide pigments are used in audio, video tapes, cassettes and in magnetic printing inks.
363 isobutane isobutane is a relatively stable, low molecular weight alkane.
364 Isodrin Isodrin was used as insecticide and is a persistent organic pollutant.
365 isoleucine isoleucine is a hydrophobic, nonpolar, essential amino acid.
366 isopropanol isopropanol is the main component in rubbing alcohol.
367 isopropyl ether Di-isopropyl ether is used as a solvent.
368 Jadeite Jade is a popular and valuable gemstone used in China since at least 2950 B.C.
369 Juglone Juglone is used as a natural herbicide.
370 Juncusol Juncusol was isolated from the Juncus roemerianus and is a potential antimicrobial agent.
371 Juncusol diacetate Juncusol was isolated from the Juncus roemerianus and is a potential antimicrobial agent.
372 Kalihinene Kalihinene was isolated from the Japanese marine sponge, Acanthella cavernosa.
373 Kepone Kepone is a pesticide that has been banned in the US and elsewhere.
374 Keramamine-A Keramamine-A was isolated from the Okinawan marine sponge Pellina species as antimicrobial substance.
375 Keramamine-A hydrochloride Keramamine-A was isolated from the Okinawan marine sponge Pellina species as antimicrobial substance.
376 Keramaphidin B Keramaphidin B has been isolated from an Okinawan marine sponge Amphimedon sp.
377 Ketene Ketene is a colorless, poisonous gas that is an irritant of the lungs, and it is used chiefly as an acetylation agent.
378 Kilprop Kilprop is a selective hormone type phenoxy herbicide used for the selective control of surface creeping weeds.
379 Lactose Lactose is the only simple sugar that is produced by animals and is commonly found in the milk fed to mammalian young.
380 β-Lactose Lactose is the only simple sugar that is produced by animals and is commonly found in the milk fed to mammalian young.
381 Lankalapuol A Lankalapuol A ia brominated sesquiterpene isolated from the marine mollusk Aplysia dactylomela.
382 Lankalapuol A acetate Lankalapuol A ia brominated sesquiterpene isolated from the marine mollusk Aplysia dactylomela.
383 Laurencin (+)-Laurencin is a marine natural product isolated from red algae, Laurencia glandilifera.
384 Lauric acid Lauric acid is found in vegetable oils such as cinnamon oil, butter, coconut oil, and palm oil.
385 Leucine Leucine is an essential amino acid.
386 Limonene Limonene is one of the components in the fragrance of Lemons.
387 Lindane Lindane is used as a commercial insecticide in fruit and vegetable crops.
388 Linoleic acid Linoleic acid is a polyunsaturated fatty acid found in plant and dairy products.
389 LSD LSD is a potent mood altering chemical.
390 D-(-)-Luciferin Luciferin is a pigment occurring in luminescent organism as fireflies.
391 Lyphocin Vancomycin is a glycopeptide antibiotic.
392 Lysine Lysine is one of the 8 essential amino acids and is involved with calcium absorption.
393 Lysozyme Lysozyme is a natural antibiotic produced by the animal body.
394 Magic mushrooms Psilocybin is a member of the tryptamine family.
395 Malachite Malachite is a carbonate that is an important ore of copper, an ornamental stone, a pigment, and a component of jewelry.
396 Maleic acid Maleic acid is used in making polyesters, surface coatings and lubricant additives.
397 (+-)-Malic acid Malic acid is a substance that has a clean, mellow, smooth, persistent, and sour taste.
398 (+-)-Malic acid Malic acid is a compound necessary for photosynthesis.
399 Malonic acid Propanedioic acid, also known as malonic acid, is a white crystalline dicarboxylic acid.
400 Maltol Maltol is a white substance usually found in powder or needle crystal form, which has a burning sweet flavor.
401 Maltose Maltose is made from two glucose units and used in alcohol production.
402 Manzamine A Manzamine A hydrochloride is an antitumor alkaloid found within a sponge.
403 Manzamine B Manzamine B is an alkaloid in the biogenetically unique manzamine family.
404 Marcasite Marcasite is a decorative mineral.
405 MDMA MDMA is a synthetic amphetamine derivative used predominantly by humans for recreational purposes.
406 Mecopar Mecopar is a selective hormone type phenoxy herbicide used for the selective control of surface creeping weeds.
407 Mecoprop Mecoprop is a selective hormone type phenoxy herbicide used for the selective control of surface creeping weeds.
408 Melanin Melanin-the brown-black pigment found in skin, hair, and eyes.
409 Melanterite Melanterite is a water soluble sulfate mineral.
410 Melatonin Melatonin is a hormone released according to the body's circadian rythm.
411 Melittin Melittin is the main active toxin of bee venom.
412 Menadione Menadione is vitamin K3.
413 6-Mercaptopurine Mercaptopurine is an anti-cancer agent.
414 Mercaptopurine monohydrate Mercaptopurine is an anti-cancer agent.
415 Mescaline Hallucinogenic drug produced by the peyote cactus.
416 Mescaline hydrochloride Hallucinogenic drug produced by the peyote cactus.
417 Methacrylate Methacrylates and acrylates are a large group of polymers that together form acrylic plastics.
418 Methane Methane is a non-toxic, colorless, odorless gas that comprises 94.6% of natural gas.
419 Methanol Methanol is the simplest alcohol.
420 Methionine Methionine is an essential amino acid that is involved with initiation of protein translation.
421 Methoxychlor Methoxychlor is a pesticide regulated in the US and elsewhere.
422 Methyl acrylate Methyl Acrylate is a component tobacco smoke.
423 Methyl benzoate Methyl benzoate is a colorless to slightly yellow, oily fragrant liquid.
424 Methyl cyanide Methyl cyanide, also known as Acetonitrile, is used for the preparation of pharmaceuticals.
425 Methyl p-hydroxybenzoate  Methyl benzoate is a colorless to slightly yellow, oily fragrant liquid.
426 Methyl mercaptan Methyl Mercaptan is used as a gas odorant and as intermediate in pesticide manufacture.
427 Methylamine Methylamine smells fishy.
428 Methylcyanoacetylene Methylcyanoacetylene was determined by observing microwave transitions.
429 Methyldiacetylene Methyldiacetylene is an interstellar molecule that has been detected in the molecular cloud TMC-1.
430 Methylpyrazine Methylpyrazine is used as flavor in bakery goods and chocolate products.
431 Millerite Millerite is a very rare, metallic mineral.
432 Mimetite Mimetite is a minor ore of lead and a popular mineral among collectors.
433 Miracle Miracle is a widely used herbicide.
434 Mirbane oil Nitrobenzene is the simplest aromatic nitro compound.
435 Mirex Mirex is a pesticide banned in most of the world.
436 Molybdenite Molybdenite is a very soft metallic mineral easily confused with graphite.
437 Molybdenum hexacarbonyl Molybdenum hexacarbonyl is a central molybdenum atom surrounded by 6 carbonyl ligands.
438 Molybdenum sulfide Molybdenite is a very soft metallic mineral easily confused with graphite.
439 Molybdic ochre Molybdenite is a very soft metallic mineral easily confused with graphite.
440 Monosan Monosan is a widely used herbicide.
441 Morphine Morphine is a common analgesic that is prescribed for severe pain.
442 Motrin Ibuprofen is a very popular drug used to assist in reducing inflammatory response.
443 Muscovite Muscovite has many industrial uses as an insulator and lubricant.
444 Musk xylene Musk xylol is a substance that has a musky aroma that is included in many fragrances.
445 NAG Glucosamine is natural sugar molecule found in the shells of chitin(shellfish).
446 Naphthol Alpha-Naphthol is used for the dyes mordant black and brown.
447 Naprosyn Naproxen is a white, odorless solid.
448 Naproxen Naproxen is a white, odorless solid.
449 Napthalene Naphthalene is a white solid that can be found naturally in fossil fuels.
450 Neamphine Neamphine is a cytotoxic metabolite of the marine sponge.
451 Needle tin Cassiterite is a mineral with high luster.
452 Neohalicholactone Neohalicholactone was isolated from the brown alga, Laminaria sinclairii and from marine sponge, Halichondria okadai.
453 N-(p-Bromobenzamide)gymnodimine benzene solvate N-(p-Bromobenzamide)gymnodimine is a biotoxin causing neurotoxic shellfish poisoning.
454 Nicotine Nicotine is a chemical substance, known as a liquid alkaloid, found in tobacco leaves, roots, and seeds.
455 Niter Niter has several uses, from a fertilizer to a reverse aphrodisiac.
456 Nitrate ion Nitrates are used as fertilizers.
457 Nitric acid (aqueous solution) Nitric acid is a strong monobasic acid and an oxidizing agent, which is characterized by a colorless, yellow, or red liquid.
458 Nitrite ion Nitrogen Dioxide is formed when fuel burns at a high temperature.
459 Nitrobenzol Nitrobenzene is the simplest aromatic nitro compound.
460 Nitroguanidine Nitroguanidine is an intermediate in the synthesis of pharmaceuticals.
461 Nitrophenol 4-Nitrophenol is a colorless to light yellow crystal with no odor but a sweet, then burning taste.
462 Nitrous oxide Nitrous oxide is widely used as a propellant in aerosol cans in place of the CFC's, which damage the ozone layer.
463 Norcholestane Norcholestane is a steroid derivative of the norsteroids.
464 Nuprin Ibuprofen is a very popular drug used to assist in reducing inflammatory response.
465 Nutrasweet Aspartame is a common artificial sweetener.
466 Octanitrocubane Octanitrocubane is believed to be potentially the world's powerful non-nuclear explosive .
467 Octanoic acid Octanoic acid, also known as caprylic acid, is a fatty acid with eight carbons.
468 Oestrin Estrone is a sex hormone.
469 Oestrone Estrone is a sex hormone.
470 Oleic acid Oleic acid is an unsaturated fatty acid found in vegetable and animal fats that has many medical and manufacuturing uses.
471 Oxalate An oxylate, or oxalate, is the salt of a metal ion and oxalic acid.
472 Oxalic acid Oxalic acid occurs naturally in plants and is also synthesized by the human body.
473 Oxirane Ethylene oxide is a flammable, colorless gas above 51.3 degrees Celsius.
474 Oxychlor Oxychlor is a persistent organic pollutant.
475 Oxytetracycline Tetracycline is a common antibiotic.
476 Ozone Ozone can be a colorless to blue gas, dark blue liquid or blue-black crystals with a pungent odor.
477 Paraherquamide Paraherquamide is a natural product with a potential anthelmintic activity.
478 Paroxetine hydrochloride hemihydrate Paroxetine hydrochloride is an odorless, off-white powder used as antidepressant drug.
479 PCB-4 Dichlorobiphenyl is a PCB which was found to be an industrial pollutant.
480 PCB-15 Dichlorobiphenyl is a PCB which was found to be an industrial pollutant.
481 Pectenotoxin Pectenotoxins are cyclic polyether.
482 Pectenotoxin-1 trihydrate Pectenotoxins are cyclic polyether.
483 Penicillin Penicillin is derived from the fungus Penicillium or created by partially artificial processes.
484 Pennamine Pennamine is a widely used herbicide.
485 Pentaacetoxy taxadiene hydrate Taxadiene is a natural product found in Taxus baccata plants used to the synthesis of taxol.
486 Pentacarbon monosulfide Pentacarbon Monosulfide was determined by observing microwave transitions.
487 Pentacarbon monoxide Pentacarbon Monoxide was determined by observing microwave transitions.
488 Pentacene Pentacene is an organic compound released into the environment through man-made or natural sources.
489 Pentachlorophenol PCP is a white crystalline powder that is soluble in water or alcohol.
490 n-Pentacosane Pentacosane is a cuticular hydrocarbon found in most insects.
491 Pentaerythritol tetranitrate Pentaerythritol tetranitrate (PETN) is a nitrate that is commonly found in the biochemical industry to alleviate chest pain.
492 Pentane Pentane is a linear five-carbon hydrocarbon.
493 Pentatetraenylidene Pentatetraenylidene is an interstellar molecule detected by microwave spectroscopy.
494 Peppermint Menthol is the active ingredient that gives peppermint its cooling taste.
495 Pepsin Pepsin is an acidic protease that acts within the digestive system.
496 Perchlorate Perchlorate is a chemical anion used in combination with many cations to form salts.
497 Periclase Periclase is usually found as a component of metamorphosed dolomitic limestones.
498 Permanganate Potassium permanganate is a powerful oxidizing agent which is used frequently despite its toxicity.
499 Peroxide ion Peroxide is a dangerous and corrosive oxidizer.
500 Perylene Perylene is used in the manufacture of organic semiconductors.
501 Phenanthrene Phenanthrene is one of the polycyclic aromatic hydrocarbons (PAHs).
502 Phencyclidine Phencyclidine is an addictive drug sold illegally on the street.
503 Phengite 3T Muscovite has many industrial uses as an insulator and lubricant.
504 Phenol Phenol, an industrial solvent, is toxic to humans and also to aquatic life.
505 Phenolphthalein Phenolphthalein consists of three phenol rings attatched to a common carbon atom.
506 Phenoxymethylpenicillin Penicillin is derived from the fungus Penicillium or created by partially artificial processes.
507 Phenylalanine An essential amino acid which aids in the biosynthesis of several neurotransmitters.
508 Phenylmercuric acetate Phenylmercuric acetate is used as an herbicide and fungicide for crops.
509 Phloroglucinol Phloroglucinol is used as a bone-decalcifying agent, as a floral preservative, and in the manufacture of pharmaceuticals.
510 Phloroglucinol dihydrate Phloroglucinol is used as a bone-decalcifying agent, as a floral preservative, and in the manufacture of pharmaceuticals.
511 Phosgene Phosgene is a colorless, nonflammable gas at room temperature and a colorless, fuming liquid below 47F.
512 Phosphine Phosphine is an air pollutant and a natural product of swamps and sewers.
513 Phosphoenol pyruvate Phosphoenolpyruvate is an important biological molecule that has many regulatory functions.
514 Phosphoenol pyruvic acid Phosphoenolpyruvate is an important biological molecule that has many regulatory functions.
515 Phosphoric acid Phosphoric acid is a triprotic acid used in biology and industry.
516 Phosphorus monoxide Phosphorus Monoxide is unstable relative to more highly oxidized phosphorus oxides.
517 Phosphorus pentachloride Phosphorus pentachloride is a small inorganic chemical.
518 Phycocyanin Phycocyanin is a blue pigment found in some algae.
519 Phycocyanobilin Phycocyanobilin is a compound that has a role in photosynthesis.
520 Phycoerythrin Phycoerythrin is a fluorescent protein isolated from a red algae.
521 Phylloquinone Phylloquinone is often called vitamin K.
522 Picene Picene is an aromatic hydrocarbon.
523 Picric acid Picric acid, or trinitrophenol, is a highly reactive, toxic compound used in the manufacture of dyes and high-powered explosives.
524 Picryl chloride Chlorotrinitrobenzene is a chlorinated hydrocarbon that forms white needle crystals.
525 Pinene α-pinene is a product used both in flavor and fragrance that has a warm, resinous aroma with a pine-like odor.
526 Pinnatazane Pinnatazane was isolated from the red algae Laurencia pinnatifida.
527 Piperazinomycin Piperazinomycin is a natural product that was isolated from the cultured broth of Streptoverticillium olivoreticuli.
528 Piperazinomycin monohydrobromide Piperazinomycin is a natural product that was isolated from the cultured broth of Streptoverticillium olivoreticuli.
529 Piperine Piperine is the primary component in black pepper.
530 Plastocyanin Plastocyanin is a single strand protein.
531 Plastoquinone Plastoquinone is an essential component in the process of photosynthesis, specifically in photosystem II.
532 Platinum Platinum is a valuable metal that is more precious than gold and is used in jewelry, electroplating, and dentistry.
533 Potassium phenolate Potassium phenolate is the starting material for the industrial production of p-hydroxybenzoate.
534 Pregnenolone Pregnenolone is considered to be the precursor to all steroidal hormones.
535 Prianosin A Prianosin A with potent antineoplastic activity was isolated from the Okinawan marine sponge Prianos melanos.
536 Progesterone Progesterone is the pregnancy hormone secreted by the ovaries.
537 Progestin Progesterone is the pregnancy hormone secreted by the ovaries.
538 Proline Proline is one of the primary building blocks of collagen.
539 Prometone Prometone is a colorless powder or a white crystalline solid used as non-selective herbicide.
540 Propadienylidene Propadienylidene play an important role as intermediates in organic synthesis.
541 Propane Propane is used as a combined solvent and refrigerant for the refining of lubricants and other products.
542 Propene acid Acrylic acid is a plant molecule that is produced by marine algae and used to make plastics.
543 2-Propenoic acid Acrylic acid is a plant molecule that is produced by marine algae and used to make plastics.
544 Propionic acid Propanoic acid or propinoic acid is a short chain fatty acid.
545 Propyne Propyne is the second simplest member of the acetylene family.
546 Prozac Fluoxetine, known as Prozac, is a SSRI-type antidepressant.
547 Pseudopterosin F Pseudopterosin F is a potent anti-inflammatory agent.
548 Pseudopterosin F dihydrate Pseudopterosin F is a potent anti-inflammatory agent.
549 Psilocybin Psilocybin is a member of the tryptamine family.
550 Pyrene Pyrene is a byproduct of the manufactures gas process and incomplete combustion process.
551 Pyridine Pyridine is used as an intermediate in making insecticides and herbicides.
552 Pyrite Pyrite is often mistaken for "Fool's Gold" because of it's gold like color and opaque crystals.
553 Pyrrhotite Pyrrhotite is a magnetic mineral whose crystals are an opaque bronze color.
554 Pyruvate Pyruvate serves as a biological fuel by being converted to acetyl coenzyme A in the Krebs cycle.
555 Quartz Quartz is one of the most abundant and widely distributed minerals in the world.
556 RDX Trimethylenenitramine is a nitramine that is used an explosive and a propellant.
557 Realgar A rare soft red to orange-yellow sulfide with a sub-metallic luster.
558 Retinoic acid Retinoic acid is used in the treatment of acne and for the aging of the skin.
559 Rhodochrosite Rhodochrosite is a rose colored mineral discovered in Argentina.
560 Ribulose-bisphosphate Ribulose bisphosphate is a compound that plays an important role in the Calvin-Benson cycle.
561 Rotenone Rotenone is a natural substance that has been used as crop insecticide and as a fish control agent.
562 Rotenone carbon tetrachloride solvate Rotenone is a natural substance that has been used as crop insecticide and as a fish control agent.
563 Saccharin Saccharin is one of the oldest artificial sweeteners in use today.
564 Salicylaldehyde Salicylaldehyde is extremely harmful if inhaled, ingested, or absorbed through the skin.
565 Salicylic acid Salicylic acid is used in the manufacture of acetylasalicylic acid, known as aspirin.
566 Salinamide B Salinamide B is currently being studied as an anti-inflammatory agent produced by the marine bacterium Streptomyces.
567 Salinamide B monohydrate Salinamide B is currently being studied as an anti-inflammatory agent produced by the marine bacterium Streptomyces.
568 Saxitoxin Saxitioxin is harbored in puffer fish, rendering the fish quite poisonous.
569 Saxitoxin ethyl hemiketal dihydrochloride monohydrate Saxitoxin is harbored in puffer fish, rendering the fish quite poisonous.
570 Scalaradial Scalaradial is a compound found in marine sponges.
571 Scapolite When scapolite is in a dissolution of hydrochloric acid, silica remains.
572 Serine Serine is one of the 12 non-essential amino acids.
573 Showdomycin Showdomycin is an antibiotic that inhibits the growth of bacteria.
574 Siderite Siderite can be found growing in sedimentary and hydrothermal environments.
575 Silicon dicarbide Silicon dicarbide has been detected in cooler carbon stars.
576 Silicon monosulfide Silicon monosulfide is a diatromic molecule found in interstellar clouds.
577 Silicon monoxide Silicon Monoxide is an excellent coating material for optical devices like mirrors, reflectors, lenses, etc.
578 Silver Silver is a very conductive, shiny metal known since prehistory.
579 Silylene Silylenes have been proposed as catalysts for olefin polymerization.
580 Sinhalite Sinhalite is a brownish green carbonate mineral.
581 Sodalite Sodalite is a blue ornamental stone that was name because of its sodium content.
582 Sodium chloride Sodium chloride is commonly known as table salt.
583 Sodium persulfate Sodium persulfate is an inorganic, ionic compound.
584 Sodium phenolate Sodium phenolate is used in the manufacture of antiseptics and as starting material for making salicylic acid.
585 Sorbic acid Sorbic acid is used as a preservative in foods, tobacco, cosmetics and pharmaceuticals.
586 Sorbitol Sorbitol is a bulk sweetner with a pleasant taste. It is a suitable substitute for sugar.
587 Sphalerite Sphalerite is an important ore of zinc which can have excellent luster.
588 Spinel Spinel is the only gemstone in the spinel group of mineral oxides and gives this group its name.
589 Stannic chloride Stannic chloride is a colorless fuming liquid with an acrid smell.
590 Stearic acid Stearic acid is used in making candles, soaps, cosmetic formulations and rubber.
591 Stream tin Cassiterite is a mineral with high luster.
592 Streptonigrin Streptonigrin is antibiotic that help fights against tumors and other viruses.
593 Streptonigrin ethylacetate solvate Streptonigrin is antibiotic that help fights against tumors and other viruses.
594 Strontianite Strontianite is a rare carbon mineral.
595 Strychnine Strychnine is so poisonous that only 0.35 grams will kill an adult.
596 Styphnic acid hydrate This compound is a dibasic acid.
597 Styrene Styrene is used in the manufacture of plastics, synthetic rubber and insulators.
598 Succinic acid Succinic acid is used as a flavoring agent for food and beverages.
599 Sucrose Sucrose is mainly used as sweetener in foods and soft drinks.
600 Sugar Sucrose is mainly used as sweetener in foods and soft drinks.
601 Sulfate ion Sulfate is the anion produced through the oxidation of elemental sulfur.
602 Sulfite Sulfur trioxide is formed when sulfur dioxide reacts with water in the air.
603 Sulfur In ancient times, sulfur was called brimstone.
604 Sulfur monoxide Sulfur Monoxide is the second most abundant gas observed in the atmosphere of Jupiter's moon.
605 Sulfur oxide tetrafluoride Sulfur fluoride oxide has a very strong odor.
606 Sulfuric acid H2SO4 is a dense, colorless, oily, corrosive liquid.
607 Sweet N Low Saccharin is one of the oldest artificial sweeteners in use today.
608 Tamoxifen Tamoxifen has been used in treatment of breast cancer interfering with the activity of estrogen.
609 Tanzanite Tanzanite's name came from the place it was discovered: Tanzania, Africa.
610 Tartaric acid Tartaric acid is a natural white crystalline compound found in many plants.
611 Testosterone Testosterone is a hormone essential to both males and females.
612 Tetrabromodichlorobipyrrole Dichloro-dimethyl-tetrabromo-bipyrrole is an organohalogen compound that was isolated from a Chromobacterium.
613 2,2',6,6'-Tetrachlorobiphenyl Tetrachlorobiphenyl is a PCB which was found to be an industrial pollutant.
614 2,3,7,8-Tetrachloro-dibenzo-p-dioxin TCDD or 2,3,7,8-Tetrachlorodibenzo-p-dioxin is a chemical known to cause health problems.
615 2,3,7,8-Tetrachloro-dibenzofuran TCDF is a persistent organic pollutant that accumulates in the environment.
616 Tetracycline Tetracycline is a common antibiotic.
617 Tetradecanol Tetradecanol, also called lanette wax, is made from stearyl alcohol.
618 1,3,5,7-Tetrafluorocylcooctatetraene It has been speculated that tetrafluorocylcooctatetraene was designed as a means to distinguish different absorbance spectra.
619 Tetrahydrocortisol Cortisol is a steroid hormone secreted in response to physical or psychological stress.
620 Tetrahydrofuran THF is a colorless, mobile liquid with a faint fruity odor used as solvent in many process.
621 Tetranitroaniline Tetranitroaniline is a nitroaromatic compound.
622 Tetrodotoxin Is a toxin from the order of puffer fish, tetraodontidae, which can be lethal to humans and other animals.
623 Tetrodotoxin hydrobromide Is a toxin from the order of puffer fish, tetraodontidae, which can be lethal to humans and other animals.
624 Tetryl Tetryl is a highly reactive and highly flammable solid used as an explosive in detonators.
625 THF THF is a colorless, mobile liquid with a faint fruity odor used as solvent in many process.
626 Thiocarbohydrazide Thiocarbohydrazide is a common reagent in Transmission and Scanning Electron Microscopy.
627 Thioketene Thioketene derivatives are used for preventing or treating hepatitis B.
628 Thionyl chloride Thionyl chloride is a corrosive liquid.
629 Thiophene Thiophene is a colorless liquid and is a cyclic aromatic compound.
630 Thioredoxin Thioredoxin mediates biochemical processes via oxidation-reduction reactionsinvolving sulfur atoms.
631 Thiourea Thiourea is used as a chemical catalyst.
632 Threonine Threonine is an essential amino acid that is useful in stabilizing blood sugar.
633 Thymidine Thymidine is a pyrimidine nucleoside.
634 Thymine Thymine is one of the two pyrimidine bases used in forming nucleotides of the nucleic acids DNA and RNA.
635 Thymol Thymol is found in liniments, lip balms, toothpaste and mouthwash.
636 Tin oxide Cassiterite is a mineral with high luster.
637 Tinstone Cassiterite is a mineral with high luster.
638 Titanium oxide Titanium Oxide is used as multi-layer coating for laser mirrors, beam splitters and heat reflecting mirrors.
639 Titanium tetrachloride Titanium tetrachloride is a colorless to slightly yellow liquid with a penetrating acid smell used as mordant in textile industry.
640 α-Tocopherol Vitamin E can be used to prevent and treat arteriosclerosis.
641 Topaz Topaz is colorless mineral, but when treated with γ irradiation it turns blue, and becomes a hot commodity on the gem market.
642 Tourmaline Tourmaline is one of the most colorful gems in the world; its name comes from the Sinhalese word turmali, meaning mixed.
643 Toxaphene Toxaphenes are a mixture of organochlorine pesticides with various chlorination levels.
644 Triacetylene Triacetylene is used for the synthesis of polyacetylenes.
645 Tridecane Tridecane is one of the major chemicals secreted from some insects as a defense against predators.
646 Trimesic acid Trimesic Acid is important in the formation of honeycomb structures, used in crystal engineering.
647 Trimethylamine Trimethylamine is used as a synthetic flavor ingredient, useful in fish and seafood.
648 Trimethylene Cyclopropane is used as an anesthetic and as a precursor to many pharmaceuticals.
649 Trimethylpyrazine 2,3,5-trimethylpyrazine is a pheromone excreted by ants.
650 Trinitrobenzene Trinitrobenzene is a highly reactive compound that is used in explosives.
651 Trinitrobenzene Trinitrobenzene is a highly reactive compound that is used in explosives.
652 Trinitroresorcinol This compound is a dibasic acid.
653 Trioxane Trioxane is a crystalline solid with a characteristic chloroform-like odor.
654 Triphenylene Triphenylene is a pollutant found almost everywhere in the environment.
655 Triphosgene Triphosgene decomposes to a poisonous gas.
656 Trunculin B Trunculin B has been isolated from a marine sponge, Lautrunculia brevis.
657 Trunculin B methyl ester Trunculin B has been isolated from a marine sponge, Lautrunculia brevis.
658 Tryptophan Tryptophan is an essential, hydrophobic amino acid.
659 Turquoise Turquoise, a vivid blue stone, is one of the oldest known gemstones.
660 Tyrosine Tyrosine is a neutral, polar, and hydrophobic amino acid.
661 Ubiquinone Ubiquinone is a naturally occurring coenzyme found in the mitochondria of the heart, liver, kidneys, and pancreas.
662 Undecanol Undecanol is a chemical that has a mandarin taste.
663 Uracil Uracil is one of the four bases of the nucleic acid RNA.
664 Urea nitrate Urea nitrate is a loose compound of urea, the diamide of carbonic acid, and nitrate.
665 Urethane Ethyl carbamate is a co-solvent and intermediate chemical used the production of many items.
666 Uridine Uridine is a pyrimidine nucleoside.
667 Uridine-5-oxyacetic acid Uridine is a pyrimidine nucleoside.
668 Valine Valine is a hydrophobic c-β branched amino acid.
669 Valium Diazepam is a compound that belongs to a group of benzodiazepine tranquilizers.
670 Vanadinite Vanadinite can be found in the oxidation zone of lead deposits in arid climates.
671 Vancocyn Vancomycin is a glycopeptide antibiotic.
672 Vancomycin Vancomycin is a glycopeptide antibiotic.
673 Vanillin Vanillin is the chief component giving vanilla its taste.
674 Variscite Variscite is a phosphate mineral that is often confused with turquoise.
675 Venlafaxine hydrochloride Venlafaxine hydrochloride is used for the treatment of severe mental depression.
676 Vinyl toluene Vinyl toluene is used as a reactive monomer in the production of polymers and coatings.
677 Vinylformic acid Acrylic acid is a plant molecule that is produced by marine algae and used to make plastics.
678 Vitamin B1 Vitamin B1 is essential for the proper growth of mammals.
679 Vitamin B12 Vitamin B12 is a water-soluble nutritional supplement.
680 Vitamin C Vitamin C is an essential nutrient that is used in many biochemical pathways in the human body.
681 Vitamin D2 Vitamin D2 is used to promote healthy bones and teeth and is found in fortified milk.
682 Vitamin D3 Vitamin D3 is one of the most important biological regulators of calcium metabolism.
683 Vitamin E Vitamin E can be used to prevent and treat arteriosclerosis.
684 Vitamin H Vitamin H is water-soluble and belongs to the group of essential B vitamins.
685 Vitamin K1 Phylloquinone is often called vitamin K.
686 Vitamin K3 Menadione is vitamin K3.
687 Vitamin U Vitamin U is found in cabbage and is used to treat gastric disorders.
688 Warfarin Warfarin is the active ingredient in a variety of commercial rodenticides.
689 Water Water is a major constituent of all living matter consisting of two parts hydrogen and one part oxygen.
690 Weed Tox Weed Tox is a widely used herbicide.
691 Weedtrol Weedtrol is a widely used herbicide.
692 Wellbutrin Bupropion is an anti-depressant of the amino-ketone class.
693 Wood tin Cassiterite is a mineral with high luster.
694 Wulfenite Wulfenite is a minor ore of lead used mainly as a collection piece.
695 m-Xylene Xylene occurs naturally in petroleum, wood tar and coal tar.
696 p-Xylene Xylene occurs naturally in petroleum, wood tar and coal tar.
697 Zippeite Zippeite is a yellow to golden brown mineral that is radioactive and also fluoresces.
698 Zircon Zircon can occur in many different colors and is a transparent to translucent crystal.
699 Zyban Bupropion is an anti-depressant of the amino-ketone class.