1-Naphthalenesulfonic acid, 8-((4-methylphenyl)amino)- 1-Naphthalenesulfonic acid, 8-p-toluidino- (8CI) 129-90-8 8-((4-Methylphenyl)amino)-1-naphthalenesulfonic acid 8-p-Toluidino-1-naphthalenesulfonic acid 8-p-Toluidinonaphthalene-1-sulphonic acid EINECS 204-968-7 NSC 11233 Tolyl Peri acid