CAS: 63451-34-3 Molecular Formula: C20H12K2N2O4 Molecular Weight (g/mol): 422.523 MDL Number: MFCD00014664 InChI Key: HRNSKWTYGVQLDN-UHFFFAOYSA-N PubChem CID: 66596657 IUPAC Name: 2-(4-carboxyquinolin-2-yl)quinoline-4-carboxylic acid;potassium SMILES: C1=CC=C2C(=C1)C(=CC(=N2)C3=NC4=CC=CC=C4C(=C3)C(=O)O)C(=O)O.[K].[K]