27949-52-6 BEBP Conen O-Butyl-S-benzyl-S-ethyl phosphorodithioate Phosphorodithioic acid, O-butyl S-ethyl S-(phenylmethyl) ester (9CI) Phosphorodithioic acid, S-benzyl O-butyl S-ethyl ester S-Benzyl-butyl-S-ethyl dithiophosphate