5-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-phenylazo-2,7-naphthalenedisulfonic acid, disodium salt
5-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-phenylazo-2,7-naphthalenedisulfonic acid, disodium salt