2(5H)-Furanone, 5-methyl-
2-Pentenoic acid, 4-hydroxy-, γ-lactone
5-Methyl-2(5H)-furanone
β-Angelica lactone
4-Hydroxypent-2-enoic acid lactone
Δ1-Angelica lactone
α,β-Angelica lactone
4-Hydroxy-2-pentenoic acid γ-lactone
γ-Methyl-Δα,β-butenolide
2-Penten-4-olide
2-Oxo-5-methyl-2,5-dihydrofuran
5-Methyl-5H-furan-2-one
4-Methyl-2-buten-4-olide
NSC 655
2-Methyl-2H-furan-5-one