Common Name: Pirimiphos-Methyl Chemical Name: O-dimethylamina-6-methylpyrimidin-4-YL phosphorothioate CAS No.: 29232-93 -7 Formula: C11H20N3O3PS Molecular Weight: 305.3 Action: Insecticide
Physical and Chemical Properties: Pirimiphos-methyl technical is a yellow liquid. The density is 1.157 (30 degree C). Refraction rate: ND25 1.527. The vapor pressure at 30 degree C is 1.333x10-2 PA. Solubility in water: 5mg/l and can be Solubility in most part of organic solvents. It's easy hydrolyze in strong acid and alkalescence mediums. It's unstable to light. The half life is 3 days in soil.
Toxicity: Acute oral LD50 to mice is 2050mg/kg, 1180mg/kg to rats, and1150~2300mg/kg to rabbits. Acute dermal LD50 to rabbits is 2000mg/kg min. No irritant to skin and eyes. LC50 to carp is 1.6mg/L (24h), 1.4mg/L (48h).
Application: It's an organic phosphate insecticide and acaricide with high effect, low toxicity, broad spectrum and rapid effecting product. As well as stomach contact and fumigation action. The conduction make it possible to permeat to leaf organization. It's widely used for the protection of storehouse, crop and for the sanitation of family and public health use. In addition it has rapid knock-down effect, it inhibits fungus growing and sterilize bateria. It's an idea low toxicity organic phosphate pesticide to replace high toxicity organic phosphate pesticide.