2-Naphthalenesulfonic acid,7-((4-aminobenzoyl)amino)-4-hydroxy-3-(2-(4-(2-(4-sulfophenyl)diazenyl)phenyl)diazenyl)-,sodium salt (1:2), Disodium 7-((4-aminobenzoyl)amino)-4-hydroxy-3-((4-((4-sulphonatophenyl)azo)phenyl)azo)naphthalene-2-sulphonate, EINECS 227-697-6, 2-Naphthalenesulfonic acid,7-((4-aminobenzoyl)amino)-4-hydroxy-3-((4-((4-sulfophenyl)azo)phenyl)azo)-,disodium salt,