6369-32-0 Benzoic acid, 2-((1-hydroxy-7-(phenylamino)-3-sulfo-2-naphthalenyl)azo)-, disodium salt Disodium 2-((1-hydroxy-7-(phenylamino)-3-sulphonato-2-naphthyl)azo)benzoate EINECS 228-867-2