Piperazine dihydrochloride

1-methyl-4-[3-(9H-thioxanthen-9-ylidene)propyl]piperazine dihydrochloride

1-[(6,7-dimethoxy-3,4-dihydro-1H-isochromen-1-yl)methyl]-4-(2-methylphenyl)piperazine dihydrochloride

1-(2-ethoxyphenyl)-4-(3,4,5-trimethoxybenzyl)piperazine dihydrochloride