disodium 8-anilino-5-[[4-[(2-chloro-5-sulphonatophenyl)azo]naphthyl]azo]naphthalene-1-sulphonate

1-Naphthalenesulfonic acid, 5-4-(2-chloro-5-sulfophenyl)azo-1-naphthalenylazo-8-(phenylamino)-, disodium salt

5-[[4-[(2-Chloro-5-sulfophenyl)azo]-1-naphthalenyl]azo]-8-(phenylamino)-1-naphthalenesulfonic acid disodium salt