Agro-care Chemical Industry Group>>>Chlorpyrifos
Common Name: Chlorpyrifos
Chemical Name: O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate
CAS No.: 2921-88-2


Molecular Formula: C9H11Cl3NO3PS
Molecular Weight: 350.6
Physical Chemistry:

Technical chlorpyrifos is white crystalline solid with a mild sulfur odor.Stability: Wide stability at room temperature.Density: 1.398(43.5°C).Melting Point: 41.5~43.5°C.Vapour Pressure: 2.5mPa(25°C).Solubility: 1.2mg/l in water, readily soluble in most organic solvents.


Chlorpyrifos is moderate toxic to animals. Acute oral LD50 for rats 163mg/kg, acute dermal LD50 for rats>2g/kg; Slight irritation to eye, serious to skin. Subacute oral non-effect level for rats 0.03mg/kg, chronic oral non-effect level 0.1mg/kg. Chronic oral non-effect level for dog 0.03mg/kg. No carcinogenic, mutagenic and teratogenic effects at experimental dosage. Maximum allowed concentration0.2mg/m3 (TLV) in indoor air. High toxic to fish and aquatic organisms, LD50 for bulltrout 15mg/l (96 h, 72°C). Toxic to bees.


Chlorpyrifos is a thiophosphate insecticide; Contact, stomach, and respiratory action.Non persistent on leaves, persistent in soil, high efficiency for the control of underground pests. At the recommended dosage, no phytotoxicity for most crop, but sensitive to tobacco.

Technical Purity: 97%Tech
Formulation Type: 48%EC
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