2,7-Naphthalenedisulfonic acid, 4-amino-6-((4-aminophenyl)azo)-3-((4-((4-((2,4-diaminophenyl)azo)phenyl)amino)-3-sulfophenyl)azo)-5-hydroxy-, trisodium salt 2,7-Naphthalenedisulfonic acid, 4-amino-6-((4-aminopohenyl)azo)-3-((4-((4-((2,4-diaminophenyl)azo)phenyl)amino)-3-sulfophenyl)azo)-5-hydroxy-, trisodium salt 72894-18-9