2-Naphthalenesulfonic acid, 7-amino-4-hydroxy- 4-14-00-02823 (Beilstein Handbook Reference) 7-AMINO-4-HYDROXY-2-NAPHTHALENESULFONIC ACID 7-Amino-4-hydroxynaphthalene-2-sulphonic acid 87-02-5 Aminonaphthol sulfonic acid J BRN 2217192 EINECS 201-718-9 I acid Isogamma acid J acid Kyselina 2-amino-5-naftol-7-sulfonova [Czech] Kyselina 6-amino-1-naftol-3-sulfonova [Czech] Kyselina I [Czech] NSC 31510