1-(3-(1,2,3,5,6,7-Hexahydro-s-indacen-4-yl)propyl)-4-methylpiperazine dihydrochloride 1-(3-(s-Hydrindacen-4-yl)propyl)-4-methylpiperazine dihydrochloride 80761-01-9 Piperazine, 1-(3-(1,2,3,5,6,7-hexahydro-s-indacen-4-yl)propyl)-4-methyl-, dihydrochloride