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Cypermethrin

Identification

Synonyms:RS)-α-cyano-3-phenoxybenzyl (1RS,3RS;1RS,3SR)-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate.
CAS No.: 52315-07-8
EC No.:
Molecular Weight: 416.3
Molecular Formula:C22H19Cl2NO3
Structural Formula:cypermethrin
Form:Odourless crystals; (tech., yellow-brown, viscous semi-solid at ambient temperatures).
M.p. 61–83 °C (depending on isomer ratio)
V.p. 2.0 × 10-4 mPa (20 °C)
S.g.: 1.24 (20 °C)
Solubility: water 0.004 mg/l at pH7. acetone, chloroform, cyclohexanone, xylene >450, ethanol: 337, hexane: 103 (all in g/l, 20 °C).
Relatively stable in neutral and weakly acidic media, with optimum stability at pH 4. Hydrolysed in alkaline media; Relatively stable to light in field situations. Thermally stable up to 220 °C.

Application

Cypermethrin is a non-systemic insecticide with contact and stomach action, by interaction with the sodium channel. .Used to control a wide range of insects, especially Lepidoptera, but also Coleoptera, Diptera, Hemiptera, and other classes, in fruit, crops, forestry, etc.. Control of flies and other insects in animal houses; and mosquitoes, cockroaches, houseflies and other insect pests in public health. Also used as an animal ectoparasiticide.

Specification*

TC, EC,

Standard Packaging

Drum, Small Co-Ex Bottle

Packaging photos coming soon

Risks and Safety Information

Class 6.1, Toxic

Acute oral LD50 ( rats) 250–4150 (tech. 7180), Skin and eye Acute percutaneous LD50 ( rats) >4920. Slight skin and eye irritant (rabbits). May be a weak skin sensitiser. Birds Acute oral LD50( mallard ducks) >10 000, fish not at risk from normal agricultural usage. Highly toxic to honeybees, but field applications at recommended dosages do not put hives at risk. LD50 (24 h) (oral) 0.035 μg/bee; (topical) 0.02 μg/bee.

Warning, Toxic

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