1-Naphthalenesulfonic acid, 6,8-bis(phenylamino)- 1-Naphthalenesulfonic acid, 6,8-dianilino- (8CI) 129-93-1 6,8-Dianilino-1-naphthalenesulfonic acid 6,8-Dianilinonaphthalene-1-sulphonic acid 6,8-Diphenylamino-1-naphthalenesulfonic acid Diphenyl Epsilon Acid EINECS 204-970-8 Epsilon acid, diphenyl- NSC 7225