Synonyms: Costunolide,dihydro- (6CI); Cyclodeca[b]furan-2(3H)-one, 3a,4,5,8,9,11a-hexahydro-3,6,10-trimethyl-,[3S-(3R*,3aR*,6E,10E,11aR*)]-; Germacra-1(10),4-dien-12-oic acid, 6a-hydroxy-, g-lactone, (E,E)-(11S)- (8CI);(+)-Dihydrocostunolide; 11b,13-Dihydrocostunolide; 11bH,13-Dihydrocostunolide; Dihydrocostunolide