1H-Cyclopent(f)isoquinoline, 2,3,4,7,8,9-hexahydro-5,6-dimethoxy- 5,6-Dimethoxy-2,3,4,7,8,9-hexahydro-1H-cyclopent(f)isoquinoline 57612-13-2 7,8-Dimethoxy-1,2,3,4-tetrahydro-cyclopentano(f)isoquinoline BRN 1535667