9-(2-Carboxyphenyl)-3,6-bis(diethylamino)xanthylium (5-((5-chloro-2-hydroxyphenyl)azo)-6-hydroxynaphthalene-2-sulphonato(3-))hydroxychromate(1-) 94277-70-0 EINECS 304-655-6 Xanthylium, 9-(2-carboxyphenyl)-3,6-bis(diethylamino)-, (5-((5-chloro-2-hydroxyphenyl)azo)-6-hydroxy-2-naphthalenesulfonato(3-))hydroxychromate(1-)