CAS: 308338-96-7 Molecular Formula: C9 H8 O6 S . 2Na Molecular Weight (g/mol): 290.2 Synonym: (2E)-2-Propenoic acid, 3-[4-(sulfooxy)phenyl]-, sodium salt (1:2) IUPAC Name: sodium (E)-3-(4-(sulfonatooxy)phenyl)acrylate SMILES: O=S(OC1=CC=C(C=C1)/C=C/C(O)=O)(O)=O.[Na].[Na]