1-Naphthalenesulfonic acid, 6-((5-chloro-2-hydroxy-3-nitrophenyl)azo)-5-hydroxy-4-(phenylamino)-, monosodium salt 6-((5-Chloro-2-hydroxy-3-nitrophenyl)azo)-5-hydroxy-4-(phenylamino)-1-naphthalenesulfonic acid, sodium salt 68227-64-5 EINECS 269-375-8 Sodium 4-anilino-6-((5-chloro-2-hydroxy-3-nitrophenyl)azo)-5-hydroxynaphthalene-1-sulphonate