2-(2,6,7,8-Tetrahydro-1H-indeno[5,4-b]furan-8-yl)ethanamine hydrochloride; 2H-Indeno[5,4-b]furan-8-ethanamine,1,6,7,8-tetrahydro-,hydrochloride;1,6,7,8-Tetrahydro-2H-indeno[5,4-b]furan-8-ethanamine hydrochloride