IUPAC:(5R)-5-{[(3E,3aR,8bS)-8,8-dimethyl-2-oxo-2H,3H,3aH,4H,5H,6H,7H,8H,8bH-indeno[1,2-b]furan-3-ylidene]methoxy}-3-methyl-2,5-dihydrofuran-2-one
IUPAC:(5R)-5-{[(3E,3aR,8bS)-8,8-dimethyl-2-oxo-2H,3H,3aH,4H,5H,6H,7H,8H,8bH-indeno[1,2-b]furan-3-ylidene]methoxy}-3-methyl-2,5-dihydrofuran-2-one