Synonyms: 3-Pentenoicacid, 4-hydroxy-, g-lactone (6CI,7CI);2,3-Dihydro-5-methylfuran-2-one;2-Oxo-5-methyl-2,3-dihydrofuran;4-Hydroxy-3-pentenoic acid g-lactone;4-Hydroxypent-3-enoicacid lactone;4-Methyl-2(3H)-furanone;5-Methyl-2,3-dihydro-2-furanone;5-Methylfuran-2(3H)-one;NSC 654;Pent-3-en-4-olide;D2-Angelica lactone;a-Angelica lactone;b,g-Angelica lactone;g-Angelica lactone;