1H-Cyclopent(f)isoquinoline, 2,3,4,7,8,9-hexahydro-5,6-dimethoxy-3-methyl-, hydrobromide 5,6-Dimethoxy-3-methyl-2,3,4,7,8,9-hexahydro-1H-cyclopent(f)isoquinoline hydrobromide 57612-14-3 7,8-Dimethoxy-N-methyl-1,2,3,4-tetrahydro-cyclopentano(f)isoquinoline hydrobromide