Synonyms: Germacra-4,11(13)-dien-12-oicacid, 1b,10-epoxy-6a,8a-dihydroxy-, 12,8-lactone, acetate, (E)- (8CI);Oxireno[8,9]cyclodeca[1,2-b]furan-8(2H)-one,6-(acetyloxy)-1a,3,6,6a,7,9a,10,10a-octahydro-4,10a-dimethyl-7-methylene-,[1aR-(1aR*,4E,6R*,6aR*,9aS*,10aR*)]-; Pyrethrosin (6CI,7CI); Chrysanthin; NSC22070