1-(4-Methoxyphenyl)-4-((3,4,5-trimethoxyphenyl)methyl)piperazine dihydrochloride 80305-21-1 N-(3,4,5-Trimethoxybenzyl)-N'-(4-methoxyphenyl)piperazine dihydrochloride Piperazine, 1-(4-methoxyphenyl)-4-((3,4,5-trimethoxyphenyl)methyl)-, dihydrochloride