1-Naphthalenesulfonic acid, 5-((3-nitrophenyl)azo)-8-(phenylamino)-, monosodium salt 1-Naphthalenesulfonic acid, 8-(phenylamino)-5-((3-nitrophenyl)azo)-, sodium salt 5-((m-Nitrophenyl)azo)-8-phenylamino-1-naphthalenesulfonic acid, sodium salt 68227-40-7 EINECS 269-352-2 Sodium 5-((3-nitrophenyl)azo)-8-(phenylamino)naphthalenesulphonate