CAS: 67627-18-3 Molecular Formula: C16H7K3N2O11S3 Molecular Weight (g/mol): 616.71 MDL Number: MFCD00013160 InChI Key: XOSMXDUITYWYGR-JRYLAINFSA-K Synonym: potassium indigotrisulfonate,indigotrisulfonic acid tripotassium salt,indigotrisulfonate potassium salt,indigotrisulfonic acid potassium salt,unii-5zza8n0abt,5zza8n0abt,tripotassium indigotrisulfonate,tri-potassium indigotrisulfonate,tripotassium indigo-5,5',7-trisulfonate,tri-potassium indigo-5,5',7-trisulfonate PubChem CID: 6364606 IUPAC Name: tripotassium (Z)-3,3'-dioxo-1H,1'H,3H,3'H-[2,2'-biindolylidene]-5,5',7-trisulfonate SMILES: [K+].[K+].[K+].[O-]S(=O)(=O)C1=CC=C2N\C(C(=O)C2=C1)=C1/NC2=C(C=C(C=C2S([O-])(=O)=O)S([O-])(=O)=O)C1=O