3-Amino-9-ethyl-5,6,7,8-tetrahydrocarbazole hydrochloride 63716-33-6 CARBAZOLE, 3-AMINO-9-ETHYL-5,6,7,8-TETRAHYDRO-, HYDROCHLORIDE Carbazole, 5,6,7,8-tetrahydro-3-amino-9-ethyl-, hydrochloride