SMILES: CC1=CC(=C(C=C1)N=NC2=C3C=CC(=CC3=CC(=C2O)S(=O)(=O)[O-])S(=O)(=O)[O-])C.[Na+].[Na+]
Description: The molecule is an organic sodium salt that is the disodium salt of 4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,7-disulfonic acid. Its use is largely confined to Masson's trichrome, where it gives a slight orange shading to the red of the cytoplasmic structures. It has a role as a histological dye, a cardiotoxic agent and a carcinogenic agent. It contains a 4-[(2,4-dimethylphenyl)diazenyl]-3-hydroxynaphthalene-2,7-disulfonate.