Synonyms: (+)-Corydaline;d-Corydaline;13abeta-Berbine, 2,3,9,10-tetramethoxy-13alpha-methyl- (8CI);13a-beta-Berbine, 2,3,9,10-tetramethoxy-13-alpha-methyl- (8CI);2,3,9,10-tetramethoxy-13beta-methyl-13abeta-berbine;Corydalin;5-21-06-00173 (Beilstein Handbook Reference);Corydaline, (+ )-;(13S,13aR)-2,3,9,10-tetramethoxy-13-methyl-5,8,13,13a-tetrahydro-6H-isoquino[3,2-a]isoquinoline;6H-Dibenzo(a,g)quinolizine, 5,8,13,13a-tetrahydro-2,3,9,10-tetramethoxy-13-methyl-, (13S-E)-;6H-Dibenzo[a,g]quinolizine, 5,8,13,13a-tetrahydro-2,3,9, 10-tetramethoxy-13-methyl-, (13S-trans)-;Berbine, 2,3,9,10-tetramethoxy-13-methyl-;6H-Dibenzo(a,g)quinolizine, 5,8,13,13a-tetrahydro-2,3,9,10-tetramethoxy-13-methyl-, (13S-trans)- (9CI);Berbine, 2,3,9, 10-tetramethoxy-13-methyl-;13a.beta.-Berbine, 2,3,9,10-tetramethoxy-13.alpha.-methyl-;CORYDALINE, 96%;