Dimethoxydithiophosphinic acid sodium salt Dithiophosphoric acid O,O-dimethyl S-sodium salt Dithiophosphoric acid S-sodium O,O-dimethyl ester salt O,O-Dimethyl dithiophosphate sodium salt O,O-Dimethyl dithiophosphate sodium salt solution sodium O,O-dimethyl phosphorodithioate sodium O,O-dimethyl dithiophosphate O,O-Dimethyldithiophosphate, sodium salt (Tech. Grade &gt