1,2-NAPHTHALENEDIOL, 6-AMINO-, HYDROCHLORIDE 2-Amino-5,6-naphthalenediol hydrochloride 2-Naphthylamine, 5,6-dihydroxy-, hydrochloride 21538-03-4 5,6-Dihydroxy-2-naphthylamine hydrochloride 5,6-Dihydroxy-beta-naphthylamine hydrochloride 6-Amino-1,2-naphthalenediol hydrochloride beta-Naphthylamine, 5,6-dihydroxy-, hydrochloride