1-(1-Adamantyl)-4-ethylpiperazine dihydrochloride 38789-55-8 Adamantane, 1-(1-(4-ethyl)piperazinyl)-, dihydrochloride Piperazine, 1-(1-adamantyl)-4-ethyl-, 2HCl Piperazine, 1-(1-adamantyl)-4-ethyl-, dihydrochloride