2,7-Naphthalenedisulfonic acid, 4-amino-3-((4'-((2,4-diaminophenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-6-((4-sulfophenyl)azo)-, trisodium salt 4-Amino-3-((4'-((2,4-diaminophenyl)azo)(3,3'-dimethyl-1,1'-biphenyl)-4-yl)azo)-5-hydroxy-6-((4-sulfophenyl)azo)-2,7-naphthalenedisulfonic acid, trisodium salt 72906-45-7 EINECS 277-003-0 Trisodium 4-amino-3-((4'-((2,4-diaminophenyl)azo)-3,3'-dimethyl(1,1'-biphenyl)-4-yl)azo)-5-hydroxy-6-((4-sulphonatophenyl)azo)naphthalene-2,7-disulphonate