1,5-Naphthalenedisulfonic acid, 3-amino- 131-27-1 2-Amino-4,8-naphthalenedisulfonic acid 2-Naphthylamine-4,8-disulfonic acid 3-14-00-02264 (Beilstein Handbook Reference) 3-AMINO-1,5-NAPHTHALENE DISULFONIC ACID 3-Amino-1,5-naphthalenedisulfonic acid 3-Aminonaphthalene-1,5-disulphonic acid 4,8-Disulfo-2-naphthalamine 7-Amino-1,5-naphthalenedisulfonic acid Acid IV BRN 3104699 C acid EINECS 205-020-5 Kyselina 2-naftylamin-4,8-disulfonova [Czech] Kyselina C [Czech] NSC 7558 beta-Naphthylamine-4,8-disulfonic acid beta-Naphthylaminedisulfonic acid