1-Piperazineethanol, 4-(4-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)butyl)-, dihydrochloride 4-(4-(1,2,3,5,6,7-Hexahydro-s-indacen-4-yl)butyl)-1-piperazineethanol dihydrochloride 80761-12-2