2-Naphthalenesulfonic acid, 5-((4-(acetylamino)phenyl)azo)-8-((4-amino-7-sulfo-1-naphthalenyl)azo)-, disodium salt 5-((4-(Acetylamino)phenyl)azo)-8-((4-amino-7-sulfo-1-naphthalenyl)azo)-2-naphthalenesulfonic acid, disodium salt 67906-50-7 Disodium 5-((4-acetamidophenyl)azo)-8-((4-amino-7-sulphonatonaphthyl)azo)naphthalene-2-sulphonate EINECS 267-718-6