2-(Diethylamino)-N-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)propanamide hydrochloride 85572-98-1 N-(s-Hydrindacen-4-yl)-2-diethylaminopropionamide hydrochloride Propanamide, 2-(diethylamino)-N-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)-, monohydrochloride