112484-44-3 2,7-Naphthalenedisulfonic acid, 4-amino-6-((4-(((4-((2,4-diaminophenyl)azo)phenyl)amino)sulfonyl)phenyl)azo)-5-hydroxy-3-((4-nitrophenyl)azo)-, potassium sodium salt 2,7-Naphthalenedisulfonic acid, 4-amino-6-((4-(((4-((2,4-diaminophenyl)azo)phenyl)amino)sulfonyl)phenyl)azo)-5-hydroxy-3-((4-nitrophenyl)azo)-, sodium potassium salt Compound