(1,1'-Binaphthalene)-5,5'-disulfonic acid, 4,4'-bis(phenylamino)- 1,1'-Bis(4-anilino-5-naphthalenesulfonic acid) 4,4'-Bans 4,4'-Bis(1-anilino-8-naphthalenesulfonate) 4,4'-Bis(8-phenylamino)naphthalene-1-sulfonate 5,5'-bis(8-(phenylamino)-1-naphthalenesulfonate) 5,5-Bis(ans) 63741-13-9 Bis(1,8-anilinonaphthalenesulfonate) Bis-ans