1-Naphthalenesulfonic acid, 8-(phenylamino)-5-((4-((3-sulfophenyl)azo)-1-naphthalenyl)azo)-, ammonium sodium salt 8-Anilino-5-((4-((3-sulphophenyl)azo)-1-naphthyl)azo)naphthalene-1-sulphonic acid, ammonium sodium salt 83006-77-3 EINECS 280-127-8