Synonyms: 10aH-Ambrosa-2,11(13)-dien-12-oicacid, 1,6b-dihydroxy-4-oxo-, g-lactone (8CI);Azuleno[4,5-b]furan-2,9-dione,3,3a,4,5,6,6a,9a,9b-octahydro-6a-hydroxy-6,9a-dimethyl-3-methylene-, [3aS-(3aa,6b,6aa,9ab,9ba)]-; Parthenin (6CI); NSC 85239; Parthenicin