Esfenvalerate

Chemical Properties: Pure white crystalline solid, M.P. 59 ~ 60.2℃; The relative density is 1.26(26℃), the vapor pressure is 0.067×10-3Pa(25℃), the refractive index is N25D1.5787, and the rotation [α] 25D-15.0O. Soluble in acetone, acetonitrile, chloroform, ethyl acetate, dimethyl formamide, dimethyl sulfoxide, xylene and other organic solvents, solubility > 60%, solubility in methanol 7% ~ 10%, ethane 1%-5%; The solubility in water is 0.3mg/L. Partition coefficient (octanol/water) 1660000(25℃). Stable in acidic medium, will decompose in alkaline medium, stable in room temperature storage for 2 years, relatively stable to sunlight. The active agent was a brown viscous liquid, solid at room temperature, m.p.49.5 ~ 55.7℃.

Application: pyrethroid insecticide, suitable crops and pest control types, appropriate period of use, control effect and so on are basically the same as fenvalerate. The dosage is 1/4 of fenvalerate (by active ingredient), see fenvalerate.