Synonyms
2H-Pyran-2-one, Coumalin, 2-Pyranone, .alpha.-Pyrone, alpha-Pyrone, delta-Valerolactone, 2-Pyrone, 2-oxo-2H-pyran, 2H-Pyrane-2-one, 463159_ALDRICH, 83193_FLUKA, CID68154, EINECS 207-990-5, CPD-11706, ZINC01846601, 5-hydroxy-2,4-pentadienoic acid delta -lactone, S14-1191, InChI=1/C5H4O2/c6-5-3-1-2-4-7-5/h1-4, 504-31-4, 542-28-9