1-(1-Adamantyl)-4-isobutylpiperazine dihydrochloride 62936-26-9 Adamantane, 1-(1-(4-isobutyl)piperazinyl)-, dihydrochloride Piperazine, 1-(1-adamantyl)-4-isobutyl-, 2HCl Piperazine, 1-(1-adamantyl)-4-isobutyl-, dihydrochloride