CAS: 597-82-0 Molecular Formula: C18 H15 O3 P S Molecular Weight (g/mol): 342.35 Synonym: Phenyl phosphorothioate ((PhO)3PS) (6CI,7CI),NSC 57867,O,O,O-Triphenyl phosphorothioate,O,O,O-Triphenyl thiophosphate,T 309,T 309 (antiwear additive),Thiophosphoric acid triphenyl ester,Triphenoxyphosphine sulfide,Triphenyl phosphorothioate,Triphenyl phosphorothionate,Triphenyl thiophosphate IUPAC Name: triphenoxy(sulfanylidene)-λ^{5}-phosphane SMILES: S=P(Oc1ccccc1)(Oc2ccccc2)Oc3ccccc3