phentolamine, Regitine hydrochloride, Prestwick_386, 3-[N-(4,5-dihydro-1H-imidazol-2-ylmethyl)-p-toluidino]-phenol,hydrochloride, phentolamin hydrochloride, Phentolamine HCl, 2-[N-(3-Hydroxyphenyl)-p-toluidinomethyl]-2-imidazolidine hydrochloride, Phenol, 3-[[(4,5-dihydro-1H-imidazol-2-yl)methyl](4-methylphenyl)amino]-, monohydrochloride, 3-[N-(4,5-Dihydro-1H-imidazol-2-ylmethyl)-p-toluidino]-phenol,Hydrochlorid, 50-60-2 (Parent), Phentolamine hydrochloride