SMILES: CC1=C[C@H]2[C@H](C[C@@H]3[C@H]1CC[C@]3(C)O)C(=C)C(=O)O2
Description: The molecule is a sesquiterpene lactone that is 3a,4,4a,5,6,7,7a,9a-octahydroazuleno[6,5-b]furan-2(3H)-one substituted by a hydroxy group at position 5, methyl groups at positions 5 and 8 and a methylidene group at position 3 (the 3aR,4aR,5S,7aR,9aS stereoisomer). 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 organic heterotricyclic compound, a sesquiterpene lactone and a tertiary alcohol.