CAS: 5808-22-0 Molecular Formula: C10H6O8S2 Molecular Weight (g/mol): 318.27 MDL Number: MFCD00150612 InChI Key: HLVXFWDLRHCZEI-UHFFFAOYSA-L Synonym: chromotropic acid sodium salt,4,5-dihydroxy-2,7-naphthalenedisulfonate,di sodium; 4,5-dihydroxy-7-sulfo-naphthalene-2-sulfonic acid,4,5-dihydroxynaphthalene-2,7-disulfonic acid disodium salt dihydrate, acs 5g PubChem CID: 124202444 IUPAC Name: 4,5-dihydroxynaphthalene-2,7-disulfonic acid;sodium;dihydrate SMILES: OC1=CC(=CC2=CC(=CC(O)=C12)S([O-])(=O)=O)S([O-])(=O)=O