CAS: 2496-92-6 Molecular Formula: C8 H19 O4 P S2 Molecular Weight (g/mol): 274.34 Synonym: Phosphorothioic acid, O,O-diethyl S-[2-(ethylsulfinyl)ethyl] ester,Ethanethiol, 2-(ethylsulfinyl)-, S-ester with O,O-diethyl phosphorothioate (8CI),Demeton-S sulfoxide,Isosystox sulfoxide,O,O-Diethyl S-[2-(ethylsulfinyl)ethyl] phosphorothioate,Systox sulfoxide IUPAC Name: 1-diethoxyphosphorylsulfanyl-2-ethylsulfinylethane SMILES: CCOP(=O)(OCC)SCCS(=O)CC