1-(1-Adamantyl)-4-cyclopentylpiperazine dihydrochloride 38789-58-1 Adamantane, 1-(1-(4-cyclopentyl)piperazinyl)-, dihydrochloride Piperazine, 1-(1-adamantyl)-4-cyclopentyl-, 2HCl Piperazine, 1-(1-adamantyl)-4-cyclopentyl-, dihydrochloride