Common name: Chlorpyrifos Chemical name: O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioate CAS NO.: 2921-88-2 Molecu Common name: Chlorpyrifos Chemical name: O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl)phosphorothioateCAS NO.: 2921-88-2Molecular formula: C9H11Cl3NO3PS Molecular weight: 350.6Physico-chemical properties: Appearance: Technical chlorpyrifos is white crystalline solid with a mild ...