1-Dimethylamino-5-cyclopentenylpentyn-4-ol-2 hydrochloride 25708-10-5 4-Pentyn-2-ol, 5-(1-cyclopenten-1-yl)-1-(dimethylamino)-, hydrochloride 5-(1-Cyclopenten-1-yl)-1-(dimethylamino)-4-pentyn-2-ol hydrochloride