Synonyms: 9,10-dimethoxy-13-methyl-5,8,13,13a-tetrahydro-6h-[1,3]dioxolo[4,5-g]isoquino[3,2-a]isoquinoline;13-Methyltetrahydroberberine;AC1L4STD;AC1Q6ZRW;Tetrahydroberberine methiodide;13-Methyltetrahydroberberine iodide;AR-1H5232;NSC299530;NSC-299530;6H-Dibenzo(a,g)quinolizinium, 5,8,13,13a-tetrahydro-7-methyl-, iodide;29550-24-1