1H-Imidazole, 4,5-dihydro-2-(1-naphthalenylmethyl)-, monohydrochloride 2-(1-Naphthylmethyl)-2-imidazoline hydrochloride 2-(1-Naphthylmethyl)-2-imidazoline monohydrochloride 2-(1-Naphthylmethyl)imidazoline