O,O,O-triethylthiophosphate Phosphine sulfide, triethoxy- Phosphorothioic acid, O,O,O-triethyl ester phosphorothioicacid,o,o,o-triethylester riethyl phosphorothioate Thiophosphoric acid, tri-O-ethyl ester Triethyl phosphorothionate Triethylphosphorothioate