1-(2-Methoxyphenyl)-4-((3,4,5-trimethoxyphenyl)methyl)piperazine dihydrochloride 80305-20-0 N-(3,4,5-Trimethoxybenzyl)-N'-(2-methoxyphenyl)piperazine dihydrochloride Piperazine, 1-(2-methoxyphenyl)-4-((3,4,5-trimethoxyphenyl)methyl)-, dihydrochloride