The chemical Acephate has a designated molecular formula of C4H10NO3PS and a molecular weight of 183.162 g/mol. Synonyms may include: 75 SP, Acephat [German], Acephate, technical, Acetamidophos, Acetylphosphoramidothioic acid O,S-dimethyl ester, AI3-27822, BRN 1936365, Caswell No. 002A, Chevron Orthene, Chevron RE 12,420, O,S-Dimethyl acetylphosphoramidothioate (ChemID).