2,7-Naphthalenedisulfonic acid, 4-amino-3-((4'-((2,4-diaminophenyl)azo)(4,4'-benzanilide)-4-yl)azo)-5-hydroxy-6-(phenylazo)-disodium salt 2,7-Naphthalenedisulfonic acid, 4-amino-3-((4-(((4-((2,4-diaminophenyl)azo)phenyl)amino)carbonyl)phenyl)azo)-5-hydroxy-6-(phenylazo)-, disodium salt 4-Amino-3-((4-(((4-((2,4-diaminophenyl)azo)phenyl)amino)carbonyl)phenyl)azo)-5-hydroxy-6-(phenylazo)-2,7-naphthalenedisulfonic acid, disodium salt 57131-19-8 71872-39-4