11-Methyl-2,3,9,10-tetramethoxy-5,8,13,13a-tetrahydro-6H-dibenzo(a,g)quinolizine 19845-26-2 2,3,9,10-Tetramethoxy-11-methylberbine [French] 6H-Dibenzo(a,g)quinolizine, 5,8,13,13a-tetrahydro-11-methyl-2,3,9,10-tetramethoxy-