106740-69-6 2,7-Naphthalenedisulfonic acid, 5-((4,6-dichloro-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-(phenylazo)-, sodium salt 5-((4,6-Dichloro-1,3,5-triazin-2-yl)amino)-4-hydroxy-3-(phenylazo)-2,7-naphthalenedisulfonic acid, sodium salt 6522-86-7