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www.sigmaaldrich.com, Cyclic compounds


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naphthalene (91-20-3, 68412-25-9)  
Naphthalene is an organic compound with formula C 10H 8. It is the simplest polycyclic aromatic hydrocarbon, and is a white crystalline solid with a characteristic odor that is detectable at concentrations as low as 0.08 ppm by mass. As an aromatic hydrocarbon, naphthalene's structure consists of a fused pair of benzene rings.
Oxirane (9072-62-2, 75-21-8)  
Ethylene Oxide
Ethylene oxide, called oxirane by IUPAC, is an organic compound with the formula C 2H 4O. It is a cyclic ether and the simplest epoxide: a three-membered ring consisting of one oxygen atom and two carbon atoms. Ethylene oxide is a colorless and flammable gas with a faintly sweet odor.
Dipentene (7705-14-8, 9003-73-0, 8008-56-8, 65996-98-7, 8008-57-9, 138-86-3, 8028-38-4, 0008008-57-9)  
limonene  ·  (+)-limonene  ·  limonene, (S)-isomer
Limonene is a clear, colorless liquid hydrocarbon classified as a cyclic monoterpene, and is the major component in oil of citrus fruit peels. The D-isomer occurring more commonly in nature as the fragrance of oranges is a flavoring agent in food manufacturing. It is also used in chemical synthesis as a precursor to carvone and as a renewables-based solvent in cleaning products.
Atrazine (1912-24-9)  
Atrazine is an herbicide of the triazine class. Atrazine is used to prevent pre- and postemergence broadleaf weeds in crops such as maize (corn) and sugarcane and on turf, such as golf courses and residential lawns. It is one of the most widely used herbicides in US and Australian agriculture.
fenvalerate (51630-58-1, 66267-77-4, 67614-33-9, 67614-32-8)  
esfenvalerate  ·  Pydrin  ·  pydrin, (R-(R*,R*))-isomer
Fenvalerate is an insecticide. It is a mixture of four optical isomers which have different insecticidal activities. The 2-S alpha (or SS) configuration, known as esfenvalerate, is the most insecticidally active isomer.
1,4-DICHLOROBENZENE (73513-56-1, 55232-43-4, 106-46-7)  
paradichlorobenzene  ·  para-dichlorobenzene  ·  p-dichlorobenzene
1,4-Dichlorobenzene (1,4-DCB, p-DCB, or para-dichlorobenzene, sometimes abbreviated as PDB or para) is an organic compound with the formula C6H4Cl2. This colorless solid has a strong odor. The molecule consists of a benzene ring with two chlorine atoms (replacing hydrogen atoms) on opposing sites of the ring.
CHLOROBENZENE (50717-45-8, 108-90-7, 68411-45-0)  
Chlorobenzene is an aromatic organic compound with the chemical formula C6H5Cl. This colorless, flammable liquid is a common solvent and a widely used intermediate in the manufacture of other chemicals.
toluene (50643-04-4, 108-88-3)  
Toluene , also known as toluol , is a colorless, water-insoluble liquid with the smell associated with paint thinners. It is a mono-substituted benzene derivative, consisting of a CH3 group attached to a phenyl group. As such, its IUPAC systematic name is methylbenzene.
Dicamba (1918-00-9)  
Dicamba (3,6-dichloro-2-methoxybenzoic acid) is a broad-spectrum herbicide first registered in 1967. Brand names for formulations of this herbicide include Banvel, Diablo, Oracle and Vanquish. This chemical compound is an chlorinated derivative of o-Anisic acid.
midazolam (59467-70-8)  
Versed  ·  Midazolam Hydrochloride  ·  Dormicum
Midazolam, marketed under the trade name Versed, among others, is a medication used for anesthesia, procedural sedation, trouble sleeping, and severe agitation. It works by inducing sleepiness, decreasing anxiety, and causing a loss of ability to create new memories. It is also useful for the treatment of seizures.
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.
2,4-dinitrophenol (51-28-5)  
2,4 Dinitrophenol  ·  2,4-DNP
2,4-Dinitrophenol (2,4-DNP or simply DNP) is an organic compound with the formula HOC6H3(NO2)2. It is a yellow, crystalline solid that has a sweet, musty odor. It sublimes, is volatile with steam, and is soluble in most organic solvents as well as aqueous alkaline solutions.
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.
1,2,4-trichlorobenzene (63697-18-7, 120-82-1)  
1,2,4-Trichlorobenzene is an organochlorine compound, one of three isomers of trichlorobenzene. It is a derivative of benzene with three chloride substituents. It is a colorless liquid used as a solvent for a variety of compounds and materials.
trifluralin (71281-30-6, 1582-09-8)  
Trifluralin is a commonly used pre-emergence herbicide. With about 14 million pounds used in the United States in 2001, it is one of the most widely used herbicides. Trifluralin is generally applied to the soil to provide control of a variety of annual grass and broadleaf weed species.
2,4-DICHLOROPHENOL (120-83-2)  
2,4-dichlorophenol sodium  ·  2,4-dichlorophenol potassium  ·  4,6-dichlorophenol
2,4-Dichlorophenol (2,4-DCP) is a chlorinated derivative of phenol with the molecular formula C6H4Cl2O. 2,4-DCP is used primarily as an intermediate in the preparation of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D). Annual worldwide production is estimated at 88 million pounds.
simazine (122-34-9)  
Herbazin-50  ·  Herbazin 50  ·  Herbazin50
Simazine is an herbicide of the triazine class. The compound is used to control broad-leaved weeds and annual grasses.
parathion (56-38-2)  
Ethyl Parathion  ·  Thiophos  ·  E-605
Parathion, also called parathion-ethyl or diethyl parathion and locally known as "Folidol", is an organophosphate compound possessing an organothiophosphate group. It is a potent insecticide and acaricide. It was originally developed by IG Farben in the 1940s.
1,2-DICHLOROBENZENE (24634-92-2, 95-50-1, 25321-22-6)  
o-dichlorobenzene  ·  2-dichlorobenzene
1,2-Dichlorobenzene, or orthodichlorobenzene (ODCB), is an organic compound with the formula C6H4Cl2. This colourless liquid is poorly soluble in water but miscible with most organic solvents. It is a derivative of benzene, consisting of two adjacent chlorine centers.
diazinon (333-41-5)  
Bazudine  ·  Neotsidol  ·  Neocidol
Diazinon (IUPAC name: O,O-Diethyl O-[4-methyl-6-(propan-2-yl)pyrimidin-2-yl] phosphorothioate, INN - Dimpylate), a colorless to dark brown liquid, is a thiophosphoric acid ester developed in 1952 by Ciba-Geigy, a Swiss chemical company (later Novartis and then Syngenta). It is a nonsystemic organophosphate insecticide formerly used to control cockroaches, silverfish, ants, and fleas in residential, non-food buildings. Diazinon was heavily used during the 1970s and early 1980s for general-purpose gardening use and indoor pest control.
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