CAS: 123333-68-6 Molecular Formula: C7H6O5S Molecular Weight (g/mol): 202.18 MDL Number: MFCD00007479 InChI Key: ZMPRRFPMMJQXPP-UHFFFAOYSA-N Synonym: benzoic acid, 2-sulfo-, monohydrate, 2-sulfobenzoic acid, oxamethane, c7h6o5s.h2o, 2-sulphobenzoic acid hydrate, acmc-20anmu, benzoic acid, 2-sulfo-hydrate, 2-sulfobenzoic acid hydrate PubChem CID: 24820382 IUPAC Name: 2-sulfobenzoic acid;hydrate SMILES: OC(=O)C1=CC=CC=C1S(O)(=O)=O