5-[(4,6-diamino-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-sulfophenyl)diazenyl]naphthalene-2,7-disulfonic acid
5-[(4,6-diamino-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-sulfophenyl)diazenyl]naphthalene-2,7-disulfonic acid
A triamino-1,3,5-triazine having a polysubstituted naphthalene group attached to one of the exocyclic nitrogens.