1-Piperazineethanol, 4-(3-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)propyl)-, dihydrochloride 4-(3-(1,2,3,5,6,7-Hexahydro-s-indacen-4-yl)propyl)-1-piperazineethanol dihydrochloride 80761-11-1