Synonyms: 2H-10,1a-(Epoxymethano)oxireno[4,5]cyclodeca[1,2-b]furan-12-one,4-(acetyloxy)-3,4,10,10a-tetrahydro-5,9-dimethyl-,[1aS-(1aR*,4S*,5Z,10R*,10aR*)]-; 4bH-Germacra-7,9,11-trien-15-oic acid, 4,5b:8,12-diepoxy-1b,6a-dihydroxy-, g-lactone, acetate, (Z)- (8CI); Zeylanan; Zeylanane