(-)-Tetrandrine 1263-79-2 16H-1,24:6,9-Dietheno-11,15-metheno-2H-pyrido(2',3':17,18)(1,11)dioxacycloeicosino(2,3,4-ij)isoquinoline, 3,4,4a,5,16a,17,18,190octahydro-12,21,22,26-tetramethoxy-4,17-dimethyl-, (4aR,16aR)- Berbaman, 6,6',7,12-tetramethoxy-2,2'-dimethyl-, (1'-beta)- NSC 105130 O,O-Dimethylkrukovine PHAEANTHINE Pheanthine Tetrondrine dihydrochloride