beta-angelica lactone, 5-methyl-2(5h)-furanon, 2(5H)-Furanone, 5-methyl-, 5-methylfuran-2(5h)-one, (+/-)-5-methyl-2(5H)-furanone, β-ANGELICA LACTONE, delta1-Angelica lactone, b-AngelicaLactone, 2-Penten-4-olide, 5-Methyl-5H-furan-2-one, 4-Methyl-2-buten-4-olide, 5-methyl-2,5-dihydrofuran-2-one, 2-methyl-2H-furan-5-one