5-[(4,6-diamino-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(2-sulfophenyl)diazenyl]naphthalene-2,7-disulfonic acid5-(4,6-DIAMINO-[1,3,5]TRIAZIN-2-YLAMINO)-4-HYDROXY-3-(2-SULFO-PHENYLAZO)-NAPHTHALENE-2,7-DISULFONIC ACID5-[(4,6-diamino-1,3,5-triazin-2-yl)amino]-4-hydroxy-3-[(E)-(2-sulfophenyl)diazenyl]naphthalene-2,7-disulfonic acid