Synonyms: Thalfetidine,O-methyl- (7CI); Thalidasan, 6,6',7,7',12-pentamethoxy-2,2'-dimethyl-;Thalidasine (8CI); (-)-Thalidasine;19H-2,3,7-[1,3]Butadien[1]yl[4]ylidene-9,12-etheno-14,18-metheno-4H-pyrido[2,3,4-tu]-1,13,6-benzodioxaazacyclodocosine,5,6,7,8,19a,20,21,22-octahydro-15,24,25,31,32-pentamethoxy-6,20-dimethyl-,[7S-(7R*,19aR*)]-; NSC 90285; O-Methylthalfetidine; O-Methylthalfoetidine;Thalidasin