SMILES: CC1=CC(=C(C=C1)N=NC2=C3C=CC(=CC3=CC(=C2O)S(=O)(=O)[O-])S(=O)(=O)[O-])C
Description: The molecule is an organosulfonate oxoanion resulting from the removal of a proton from both of the sulfo groups of 4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,7-disulfonic acid. It is a conjugate base of a 4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,7-disulfonic acid.