The 2-Naphthalenesulfonicacid, 6,6'-iminobis[4-hydroxy-, disodium salt(8CI,9CI), with the CAS registry number 20120-48-3, is also known as 2-Naphthalenesulfonic acid, 6,6'-iminobis[4-hydroxy-, sodium salt (1:2). Its EINECS registry number is 243-529-4. This chemical's molecular formula is C₂₀H₁₃NNa₂O₈S₂ and molecular weight is 505.4287. What's more, its systematic name which is called Disodium 4-hydroxy-6-[(8-hydroxy-6-sulfonato-2-naphthyl)amino]naphthalene-2-sulfonate.

Physical properties about 2-Naphthalenesulfonicacid, 6,6'-iminobis[4-hydroxy-, disodium salt(8CI,9CI) are: (1)#H bond acceptors: 9; (2)#H bond donors: 5; (3)#Freely Rotating Bonds: 6; (4)Polar Surface Area: 183.65Ų.

You can still convert the following datas into molecular structure:
(1) SMILES: [Na+].[Na+].[O-]S(=O)(=O)c1cc(O)c2cc(ccc2c1)Nc3cc4c(cc3)cc(cc4O)S([O-])(=O)=O
(2) InChI: InChI=1/C20H15NO8S2.2Na/c22-19-9-15(30(24,25)26)5-11-1-3-13(7-17(11)19)21-14-4-2-12-6-16(31(27,28)29)10-20(23)18(12)8-14;;/h1-10,21-23H,(H,24,25,26)(H,27,28,29);;/q;2*+1/p-2
(3) InChIKey: JZPHVWXAYIALON-NUQVWONBAL