常用名: Dehydrocostus lactone (Epiligulyl oxide)

IUPAC: (3aS,6aR,9aS,9bS)-3,6,9-trimethylidene-dodecahydroazuleno[4,5-b]furan-2-one

SMILES: C=C1CC[C@@H]2[C@@H]1[C@H]1OC(=O)C(=C)[C@@H]1CCC2=C