... .Manufacturer supplier 4.Competitive price Chlorpyrifos 50% + Cypermethrin 5% ECIntroduction:Chlorpyrifos: Non-systemic insecticide with contact, stomach, ... ectoparasiticide.Chemical name: O, O-diethyl O-3, 5, 6-trichloro-2-pyridyl phosphorothioate; (RS)-a-cyano-3-phenoxybenzyl ... 0.1 max.** pH value** **4.5 ~ 6.5Insoluble in acetone, %0.5 max.0.5 max.** Emulsion stability** **Qualified Chlorpyrifos 50% ...