1-((3,4-Dihydro-8-methoxy-2H-1-benzopyran-3-yl)methyl)-4-phenylpiperazine 83823-48-7 BRN 4530934 Piperazine, 1-((3,4-dihydro-8-methoxy-2H-1-benzopyran-3-yl)methyl)-4-phenyl-