Detailed Product Description

Chlorpyrifos

Trade Name: Chlorpyrifos

Chemical Name: O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioate

Molecular Formula: C₉H₁₁Cl₃NO₃PS

Molecular Weight: 350.6

CAS No.: 2921-88-2

Physiochemical Property:

Appearance: 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.

Technical Specifications:

Content:       97.0% min

Acidity:   0.3 max

acetone-insoluble substance:  0.5% max

Moisture:      0.5% max

Toxicity:

Chlorpyrifos is moderate toxic to animals. Acute oral LD50 for rats 163mg/kg, acute dermal LD50 for rats>2g/kg;

Application:

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.