SMILES: COC1=CC=CC=C1N=NC2=C(C3=CC=CC=C3C(=C2)S(=O)(=O)[O-])O.[Na+]
Description: The molecule is an organic sodium salt having 4-hydroxy-3-[(2-methoxyphenyl)diazenyl]naphthalene-1-sulfonate as the counterion. It has a role as a dye and an environmental contaminant. It contains a 4-hydroxy-3-[(2-methoxyphenyl)diazenyl]naphthalene-1-sulfonate.