1-((3,4-Dihydro-6,7-dimethoxy-1H-2-benzopyran-1-yl)methyl)-4-phenylpiperazine dihydrochloride 70070-14-3 N-(4-Phenylpiperazino)-1-methyl-5,6-dimethoxyisochroman dihydrochloride Piperazine, 1-((3,4-dihydro-6,7-dimethoxy-1H-2-benzopyran-1-yl)methyl)-4-phenyl-, dihydrochloride