The molecule is a sesquiterpene lactone that is decahydroazuleno[6,5-b]furan-2,5-dione substituted by methyl groups at positions 4a and 8 and a methylidene group at position 3. It has been isolated from the aerial parts of Inula hupehensis. It has a role as a metabolite, a plant metabolite and an anti-inflammatory agent. It is a cyclic ketone, a sesquiterpene lactone, a gamma-lactone and an organic heterotricyclic compound.
(3aS,5R,5aS,8aS,9aR)-5,8a-dimethyl-1-methylidene-3a,4,5,5a,6,7,9,9a-octahydroazuleno[6,7-b]furan-2,8-dione