Common name: esfenvalerate(BSI, ISO)
Trade name: Belmark; Pydrin; Asana-Hp/XL; Asana; Sumi-alpha; Sumicidin Aa;
Alias:S-1844; S-5602A2; OMS-3023; fenvalerate
Chemical name:(S)-cyano(3-phenoxyphenyl)methyl (2S)-2-(4-chlorophenyl)-3-methylbutanoate
Structural formula:
CAS:66230-04-4
Molecular formula:C25H22ClNO3
Molecular weight:419.9
Properties: pure product is white crystalline crystal, melting point is 59.0～60.2℃, density is d23231.163, specific rotation is [α]25D-15.0(C=2.0, CH3OH). Vapor pressure at 20℃ is 35.1μPa, at 25℃ is 66.7μPa. Technical product is brown viscous liquid or solid. Melting point is 49.9～55.7℃(purity is 98.2％), specific density is d261.26, boiling point>200℃/1.33×102Pa, ignition point is 420℃, flash point >200℃. Solubility at 25℃ (％): xylene, acetone, methylisobutylketone, acetic ether, trichloromethane, acetonitrile, dimethylformamide, dimethylsulfoxide, and tenneco 500~100>60; 1-Methylnaphthalene is 50～60; ethyl cellosolve is 40～50; methyl alcohol is 7～10; n-hexane is 1～5; kerosene<1. Solubility in water at 25℃<0.3mg/kg.
Formula:5％ EC, 2.5％ EC.
Quality standard:5％ esfenvalerate EC is yellowish-brown oily liquid. Density is 0.903, flash point is 27℃(close). It has favorable emulsifying property.
Control objects: cotton bollworm, pink worm, peach fruit moth, oriental fruit moth bean-pod borer, soybean aphid, tea geometrid, tea tussork moth, European corn borer, cabbage moth, imported cabbageworm, apple aphid, peach aphid, etc.
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