1-(2-Ethoxyphenyl)-4-((3,4,5-trimethoxyphenyl)methyl)piperazine dihydrochloride 80305-16-4 N-(3,4,5-Trimethoxybenzyl)-N'-(2-ethoxyphenyl)piperazine dihydrochloride Piperazine, 1-(2-ethoxyphenyl)-4-((3,4,5-trimethoxyphenyl)methyl)-, dihydrochloride