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Common NameZeta-cypermethrin
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中文通用名Z-氯氰菊酯
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IUPACA mixture of the stereoisomers (S)-
a-cyano-3-phenoxybenzyl (1RS,3RS;1RS,3SR)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate where the ratio of the (S);(1RS,3RS) isomeric pair to the (S);(1RS,3SR) isomeric pair lies in the ratio range 45-55 to 55-45 : A mixture of the stereoisomers (S)- a-cyano-3-phenoxybenzyl (1RS)-cis-trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate (where the ratio of isomeric pairs is as defined above) -
CAS(S)-cyano(3-phenoxyphenyl)methyl (?-cis-trans-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate
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CAS No.52315-07-8
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Molecular FormulaC22H19Cl2NO3
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Molecular Structure
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Category
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Activity
insecticide
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CropUse
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PremixImidacloprid+carbosulfan+zeta-cypermethrin
Bioallethrin+zeta-cypermethrin
bifenthrin+zeta-cypermethrin+imidacloprid
Emulsifiable concentrate.
Premix Parters:cyproconazole; difenoconazole; fludioxonil; fludioxonil tebuconazole; propiconazole
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Physical PropertiesThe ratio of the isomer pairs is in the range 45-55 to 55-45.Molecular weight:416.3g/mol;Form Dark brown viscous liquid.M.p. -22.4℃;B.p. Decomposes before boiling at 760 mmHg;V.p. 2.5,10-4 mPaHenry 2.02,10-3 Pa m3 mol-1;S.g./density 1.219 g/cm3 (25℃);Solubility In water 0.045 mg/l (25℃). Miscible in most organic solvents.Stability Stable at 50℃ for 1 y. Photolysis DT50 (aqueous solution) 20.2-36.1 d (pH 7). Hydrolysis DT50 508-769 d (pH 5), 188-635 d (pH 7), 2.9 d (pH 9).F.p. >300℃
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Toxicology
Acute
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Environmental Profile
Animals Elimination in mammals is rapid; 78% is eliminated via urine and faeces after 24 h, 97% after 96 h.Soil/Environment DT50 14-28 d in a typical fertile soil. Immobile; strongly adsorbs to organic material. Koc 11 542-54 913.
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Transport InformationSignal Word:WARNING; Hazard Class:II(Moderately hazardous)
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Country: India
Cypermethrin Alpha-cypermethrin Permethrin Deltamethrin Zeta-cypermethrin Transfluthrin Bifenthrin Metamitron Dicamba 2-4 D