2669-32-1 AI3-27238 BRN 0621188 Caswell No. 427C ENT 27,238 EPA Pesticide Chemical Code 427400 GS 12968 GS-12968 Geigy 12968 Geigy GS-12968 Lythidathion NC-2962 O,O-Dimethyl S-(5-ethoxy-1,3,4-thiadiazol-2(3H)-onyl-(3)-methyl)dithiophosphate O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadiazol-2(3H)-onyl-(3)-methyl)phosphorodithioate O,O-Dimethyl-S-(5-ethoxy-1,3,4-thiadiazolinyl-3-methyl)dithiophosphate OMS 958 Phosphorodithioic acid, O,O-dimethyl ester, S-ester with 2-ethoxy- 4-(mercaptomethyl)-delta(sup 2)-1,3,4-thiadiazolin-5-one Phosphorodithioic acid, S-((5-ethoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl) O,O-dimethyl ester S-((5-Ethoxy-2,3-dihydro-2-oxo-1,3,4-thiadiazol-3-yl)methyl) O,O-dimethyl phosphorodithioate S-((5-Ethoxy-2-oxo-1,3,4-thiadiazol-3(2H)-yl)methyl) O,O-dimethyl phosphorodithioate