2-Naphthalenesulfonic acid, 6-amino-5-((5-chloro-4-methyl-2-sulfophenyl)azo)-4-hydroxy-, disodium salt 68631-11-8 Disodium 6-amino-5-((5-chloro-4-methyl-2-sulphonatophenyl)azo)-4-hydroxynaphthalene-2-sulphonate EINECS 271-936-7