1,3,5-Naphthalenetrisulfonic acid, 7-((4-((4-aminophenyl)azo)phenyl)azo)-, trisodium salt 2-((4'-((4''-Aminophenyl)-1''-azo)phenyl)-1'-azo)-4,6,8-naphthalenetrisulfonic acid, trisodium salt 68400-38-4 EINECS 270-027-2 Trisodium 7-((4-((4-aminophenyl)azo)phenyl)azo)naphthalene-1,3,5-trisulphonate