The CAS register number of Potassium indigotetrasulfonate is 67627-19-4. It also can be called as 1H-Indole-5,7-disulfonic acid,2-(1,3-dihydro-3-oxo-5,7-disulfo-2H-indol-2-ylidene)-2,3-dihydro-3-oxo-, tetrapotassium salt and the systematic name about this chemical is tetrapotassium (2E)-3,3'-dioxo-1,1',3,3'-tetrahydro-2,2'-biindole-5,5',7,7'-tetrasulfonate. The molecular formula about this chemical is C₁₆H₆K₄N₂O₁₄S₄ and molecular weight is 734.88.

Physical properties about Potassium indigotetrasulfonate are: (1)#H bond acceptors: 16; (2)#H bond donors: 6; (3)#Freely Rotating Bonds: 4; (4)Polar Surface Area: 302.94Ų.

You can still convert the following datas into molecular structure:
(1)SMILES: [K+].[K+].[K+].[K+].[O-]S(=O)(=O)c4cc3C(=O)\C(=C2\C(=O)c1cc(cc(c1N2)S([O-])(=O)=O)S([O-])(=O)=O)Nc3c(c4)S([O-])(=O)=O
(2)InChI: InChI=1/C16H10N2O14S4.4K/c19-15-7-1-5(33(21,22)23)3-9(35(27,28)29)11(7)17-13(15)14-16(20)8-2-6(34(24,25)26)4-10(12(8)18-14)36(30,31)32;;;;/h1-4,17-18H,(H,21,22,23)(H,24,25,26)(H,27,28,29)(H,30,31,32);;;;/q;4*+1/p-4/b14-13+;;;;
(3)InChIKey: SWRJFVUVNXWCRX-SVJRYTIABN
(4)Std. InChI: InChI=1S/C16H10N2O14S4.4K/c19-15-7-1-5(33(21,22)23)3-9(35(27,28)29)11(7)17-13(15)14-16(20)8-2-6(34(24,25)26)4-10(12(8)18-14)36(30,31)32;;;;/h1-4,17-18H,(H,21,22,23)(H,24,25,26)(H,27,28,29)(H,30,31,32);;;;/q;4*+1/p-4/b14-13+;;;;
(5)Std. InChIKey: SWRJFVUVNXWCRX-XURWPRCOSA-J