CAS: 52789-62-5 Molecular Formula: C10H7NNa2O7S2 Molecular Weight (g/mol): 363.27 MDL Number: MFCD11042663 InChI Key: XZGHMYIWMXYELB-UHFFFAOYSA-L Synonym: 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic Acid Monosodium Salt, Chicago Acid, 2S Acid, Sodium Hydrogen 4-Amino-5-hydroxy-1,3-naphthalenedisulfonate, SS Acid, Monosodium 1-Amino-8-naphthol-2,4-disulfonate PubChem CID: 101310392 IUPAC Name: disodium 4-amino-5-hydroxynaphthalene-1,3-disulfonate SMILES: [Na+].[Na+].NC1=C2C(O)=CC=CC2=C(C=C1S([O-])(=O)=O)S([O-])(=O)=O