Diethyl chlorothiophosphate Catalogue No. Specifications FAQs Effective constituentDiethyl chlorothiophosphateChemical nameDiethyl phosphorochloridothionateCAS Number2524-04-1Molecular formulaC4H10ClO2PSFormula weight188.61Constitutional formula Applications:Diethylthiophosphoryl chloride is an intermediate for the preparation of organophosphorus pesticides such as octathion