1,3-Naphthalenedisulfonic acid, 6-amino- 118-33-2 2-Aminonaphthalene-5,7-disulfonic acid 2-NAPHTHYLAMINE-5,7-DISULFONIC ACID 2-Naftylamin-5,7-disulfonan sodny [Czech] 2-Naphthylamine, 5,7-disulfo- 4-14-00-02811 (Beilstein Handbook Reference) 6-Amino-1,3-naphthalene disulfonic acid 6-Amino-1,3-naphthalenedisulfonic acid 6-Aminonaphthalene-1,3-disulphonic acid 87309-33-9 Amino-I acid Amino-J acid Amino-J-acid BRN 2157980 EINECS 204-246-1 Kyselina amino-I NSC 4157 Naphthalene-1,3-disulfonic acid, 6-amino- beta-Naphthylamine-5,7-disulfonic acid