6-AMINO-1,3-NAPHTHALENEDISULFONIC ACID MONOSODIUM SALT AMINO J ACID MONOSODIUM SALT 2-NAPHTHYLAMINE-5,7-DISULFONIC ACID MONOSODIUM SALT 6-Amino-1,3-naphthalenedisulfonic Acid Monosodium Salt Hydrate [for Determination of 1-Naphthol in 2-Naphthol] Monosodium 6-Amino-1,3-naphthalenedisulfonate Sodium Hydrogen 6-Amino-1,3-naphthalenedisulfonate Amino J Acid Monosodium Salt 2-Naphthylamine-5,7-disulfonic Acid Monosodium Salt Monosodium 6-Amino-1,3-naphthalenedisulfonate Sodium Hydrogen 6-Amino-1,3-naphthalenedisulfonate 6-Amino-1,3-naphthalenedisulfonic acid 1-sodium salt