The molecule is an arenesulfonic acid that is 2-methoxybenzenesulfonic acid substituted at position 5 by a (4-amino-5-methoxy-2-methylphenyl)diazenyl group. The sodium salt is the histological dye 'Sirius scarlet GG'. It has a role as a histological dye and a fluorochrome. It is a member of azobenzenes, an aromatic ether, a substituted aniline and an arenesulfonic acid. It is a conjugate acid of a 5-[(4-amino-5-methoxy-2-methylphenyl)diazenyl]-2-methoxybenzene-1-sulfonate.
5-[(4-amino-5-methoxy-2-methylphenyl)diazenyl]-2-methoxybenzenesulfonic acid