Synonyms: PARTHENOLIDE, 9B-ACETOXY-;NSC292657;55249-44-0;NSC672116;1a,5-Dimethyl-8-methylene-9-oxo-1a,2,3,6,7,7a,8,9,10a,10b-decahydrooxireno(9,10)cyclodeca(1,2-b)furan-6-yl acetate;1a,5-Dimethyl-8-methylene-9-oxo-1a,2,3,6,7,7a,8,9,10a,10b-decahydrooxireno[9,10]cyclodeca[1,2-b]furan-6-yl acetate;NSC 292657;NSC 672116