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Five-membered rings

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endosulfan (959-98-8, 33213-65-9, 115-29-7)  
Thiodan  ·  beta-Endosulfan  ·  Thiodon
Endosulfan is an off-patent organochlorine insecticide and acaricide that is being phased out globally. The two isomers, endo and exo, are known popularly as I and II. Endosulfan sulfate is a product of oxidation containing one extra O atom attached to the S atom.
Aflatoxin B1 (1162-65-8)  
Aflatoxin B  ·  NSC-529592  ·  Aflatoxin B1, cis(+,-)-Isomer
Aflatoxins are poisonous carcinogens that are produced by certain molds (Aspergillus flavus and Aspergillus parasiticus) which grow in soil, decaying vegetation, hay, and grains. They are regularly found in improperly stored staple commodities such as cassava, chili peppers, corn, cotton seed, millet, peanuts, rice, sesame seeds, sorghum, sunflower seeds, tree nuts, wheat, and a variety of spices. When contaminated food is processed, aflatoxins enter the general food supply where they have been found in both pet and human foods, as well as in feedstocks for agricultural animals.
AZT (threo) (30516-87-1, 73971-82-1)  
Zidovudine (ZDV), also known as azidothymidine (AZT), is an antiretroviral medication used to prevent and treat HIV/AIDS. It is generally recommended for use with other antiretrovirals. It may be used to prevent mother-to-child spread during birth or after a needlestick injury or other potential exposure.
Imidacloprid (138261-41-3, 105827-78-9)  
Imidacloprid is a systemic insecticide that acts as an insect neurotoxin and belongs to a class of chemicals called the neonicotinoids which act on the central nervous system of insects, with much lower toxicity to mammals. The chemical works by interfering with the transmission of stimuli in the insect nervous system. Specifically, it causes a blockage of the nicotinergic neuronal pathway.
atorvastatin (134523-00-5, 110862-48-1, 134523-03-8)  
Atorvastatin, marketed under the trade name Lipitor among others, is a member of the medication class known as statins, which are used primarily as a lipid-lowering agent and for prevention of events associated with cardiovascular disease. Like all statins, atorvastatin works by inhibiting HMG-CoA reductase, an enzyme found in liver tissue that plays a key role in production of cholesterol in the body. Atorvastatin was first made in August 1985 at Warner-Lambert's Parke-Davis research facility in Ann Arbor, Michigan by a team led by Bruce Roth.
pramipexole (104632-26-0)  
Pramipexole (Mirapex, Mirapexin, Sifrol) is a dopamine agonist of the non-ergoline class indicated for treating Parkinson's disease (PD) and restless legs syndrome (RLS).
2-Furaldehyde (98-01-1, 8030-97-5)  
Furfural  ·  Furaldehyde
Furfural is an organic compound produced from a variety of agricultural byproducts, including corncobs, oat, wheat bran, and sawdust. The name furfural comes from the Latin word furfur, meaning bran, referring to its usual source. Aside from ethanol, acetic acid and sugar it is one of the oldest renewable chemicals.
camphor (21368-68-3, 76-22-2, 464-49-3, 8008-51-3, 464-48-2)  
Camphor, (1R)-Isomer  ·  Camphor, (+-)-Isomer  ·  Camphor, (1S)-Isomer
Camphor () is a waxy, flammable, white or transparent solid with a strong aroma. It is a terpenoid with the chemical formula C10H16O. It is found in the wood of the camphor laurel (Cinnamomum camphora), a large evergreen tree found in Asia (particularly in Sumatra and Borneo islands, Indonesia) and also of the unrelated kapur tree, a tall timber tree from the same region.
Methidathion (950-37-8)  
Supracide  ·  O,O-dimethyl S-(2-methoxy-1,3,4-thiadiazole-5)-(4H)-onyl-(4)-methylphosphorodithioate  ·  S-(5-methoxy-2-oxo-1,3,4-thiadiazol-3-(2H)-yl) O,O-dimethylphosphorodithioate
Methidathion is an organophosphate insecticide; its use is banned in the European Community. Residues on common vegetables have been found in Thailand at levels 100 times the legal limit, Thailand routinely uses many pesticides banned in the US and EU and in amounts far exceeding limits. Methidathion used as an insecticide in many countries to control caterpillars of Indarbela quadrinotata.
DICYCLOPENTADIENE (1755-01-7, 77-73-6, 25038-78-2)  
Dicyclopentadiene, abbreviated DCPD, is a chemical compound with formula C10H12. At room temperature, it is a clear light yellow color liquid with an acrid odor. Its energy density is 10,975 Wh/l.
TRIADIMEFON (43121-43-3)  
Bayleton  ·  triadimenol  ·  azocene
Triadimefon is a fungicide used in agriculture to control various fungal diseases. As a seed treatment, it is used on barley, corn, cotton, oats, rye, sorghum, and wheat. In fruit it is used on pineapple and banana.
fipronil (120068-37-3)  
5-amino-1-(2,6-dichloro-alpha,alpha,alpha-trifluoro-p-tolyl)-4-trifluoromethylsulfinylpyrazole-3-carbonitile
Fipronil is a broad-spectrum insecticide that belongs to the phenylpyrazole chemical family. Fipronil disrupts the insect central nervous system by blocking GABA-gated chloride channels and glutamate-gated chloride (GluCl) channels. This causes hyperexcitation of contaminated insects' nerves and muscles.
FURAN (110-00-9)  
Furan is a heterocyclic organic compound, consisting of a five-membered aromatic ring with four carbon atoms and one oxygen. Chemical compounds containing such rings are also referred to as furans. Furan is a colorless, flammable, highly volatile liquid with a boiling point close to room temperature.
zidovudine (30516-87-1)  
Zidovudine (ZDV), also known as azidothymidine (AZT), is an antiretroviral medication used to prevent and treat HIV/AIDS. It is generally recommended for use with other antiretrovirals. It may be used to prevent mother-to-child spread during birth or after a needlestick injury or other potential exposure.
thiabendazole (148-79-8)  
Mintezol  ·  Omnizole  ·  Thibendole
Tiabendazole (INN, BAN), thiabendazole (AAN, USAN), TBZ (and the trade names Mintezol, Tresaderm, and Arbotect) is a fungicide and parasiticide.
biotin (56846-45-8, 58-85-5)  
Vitamin H  ·  medobiotin  ·  Biotin Biocur Brand
Biotin is a water-soluble B-vitamin, also called vitamin B7 and formerly known as vitamin H or coenzyme R. It is composed of a ureido ring fused with a tetrahydrothiophene ring. A valeric acid substituent is attached to one of the carbon atoms of the tetrahydrothiophene ring.
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