1-((3,4-Dihydro-5,6-dimethoxy-1H-2-benzopyran-1-yl)methyl)-4-(4-methoxyphenyl)piperazine 5-23-02-00483 (Beilstein Handbook Reference) 64229-67-0 BRN 0851656 Piperazine, 1-((3,4-dihydro-5,6-dimethoxy-1H-2-benzopyran-1-yl)methyl)-4-(4-methoxyphenyl)-