2-Naphthalenesulfonic acid, 6-amino-5-((4-((3-chlorobenzoyl)amino)-2-sulfophenyl)azo)-4-hydroxy-, disodium salt 2-Naphthalenesulfonic acid, 6-amino-5-(4-(3-chlorobenzoylamino)-2-sulfophenylazo)-4-hydroxy-, disodium salt 67875-07-4 Disodium 6-amino-5-((4-((3-chlorobenzoyl)amino)-2-sulphonatophenyl)azo)-4-hydroxynaphthalene-2-sulphonate EINECS 267-521-5