.alpha.-Naphthylamine-8-sulfonic acid 1-Amino-8-naphthalene sulfonate 1-Aminonaphthalene-8-sulfonate 1-Aminonaphthalene-8-sulfonic acid 1-Naphthalenesulfonic acid, 8-amino- 1-Naphthylamine-8-sulfonic acid 8-Amino-1-naphthalenesulfonic acid 82-75-7 NSC7798 Naphthylaminemonosulfonic acid S Peri acid Schollkopf's acid