2-(Diethylamino)-N-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)acetamide hydrochloride 85564-80-3 Acetamide, 2-(diethylamino)-N-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)-, monohydrochloride