The molecule is a sesquiterpene lactone that is 3a,4,4a,5,6,7,9,9a-octahydroazuleno[6,5-b]furan-2(3H)-one substituted by a hydroxy group at position 5, methyl groups at positions 5 and 8, an acetyloxy group at position 7 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, an anti-inflammatory agent and a plant metabolite. It is a gamma-lactone, an acetate ester, an organic heterotricyclic compound, a tertiary alcohol and a sesquiterpene lactone.
[(3aR,6S,8R,8aR,9aR)-8-hydroxy-5,8-dimethyl-1-methylidene-2-oxo-4,6,7,8a,9,9a-hexahydro-3aH-azuleno[6,5-b]furan-6-yl] acetate