1-NAPHTHALENESULFONIC ACID, 7-AMINO- 2-Naphthylamine-8-sulfonic acid 4-14-00-02802 (Beilstein Handbook Reference) 7-Amino-1-naphthalenesulfonic acid 7-Aminonaphthalene-1-sulphonic acid 86-60-2 BRN 2695330 Baden acid Badische Acid EINECS 201-685-0