The chemical Parthenolide has a designated molecular formula of C15H20O3 and a molecular weight of 248.322 g/mol. Synonyms may include: 4,5-alpha-Epoxy-6-beta-hydroxygermacra-1(10),11(13)-dien-12-oic acid gamma-lactone, NSC 157035, (-)-Parthenolide, UNII-2RDB26I5ZB (ChemID).