2465-65-8 4486-42-4 5852-63-1 5871-17-0 DEPTh DETP DETP (ester) Diethyl hydrogen phosphorothionate Diethyl phosphorothionate Diethyl phosphothionate Ethyl phosphorothioate ((EtO)2(HS)PO) O,O-DIETHYL PHOSPHOROTHIOATE O,O-Diethyl hydrogen phosphorothioate O,O-Diethyl phosphorothiolate O,O-Diethyl phosphorothionate O,O-Diethyl thiophosphate Phosphorothioic acid, O,O-diethyl ester