Chemical Name: O,O-diethyl O-(3,5,6-trichloro-2-pyridinyl) ester.

Formula: C₉H₁₁Cl₃NO₃PS

Molecular weight: 350.59.

CAS No.: 2921-88-2
Appearance : White to colorless crystals
Melting Point: 41-42 °C.
Vapour Pressure: 2.5 mPa  at 25 °C .
Stability: 2 mg/L at 25 °C in water , soluble in  benzene; acetone.; chloroform ; carbon disulfide . diethyl ether . xylene .methylene chloride ,methanol .
Formulation: 97%TC,40%EC,48%EC,45%ULV,30%CS,40%CS
Uses: chlorpyrifos For use on alfalfa, citrus, corn, deciduous, potato, rice, sorghum, soybean, sugar beets, sugarcane, etc., and as a seed treatment.