O,O-dimethyl S-[2-(morpholin-4-yl)-2-oxoethyl] phosphorodithioate, MORPHOTHION, dithiophosphoric acid O,O'-dimethyl ester S-(2-morpholin-4-yl-2-oxo-ethyl) ester, O,O-dimethyl S-morpholinocarbonylmethyl phosphorodithioate, PHOSPHORODITHIOIC ACID,O,O-DIMETHYL S-[2-(4-MORPHOLINYL)-2-OXOETHYL] ESTER, O,O-dimethyl S-[2-(4-morpholinyl)-2-oxoethyl] phosphorodithioate