Synonyms: 2,5-Dimethyl-3-hydroxy-4-oxo-4,5-dihydrofuran;2,5-Dimethyl-4,5-dihydrofuran-3-ol-4-one;2,5-Dimethyl-4-hydroxy-2,3-dihydrofuran-3-one;2,5-Dimethyl-4-hydroxy-3(2H)-furanone;4-Hydroxy-2,5-Dimethyl-3-oxo-2,3-dihydrofuran;4-Hydroxy-2,5-dimethyl-2,3-dihydrofuran-3-one;4-Hydroxy-2,5-dimethyl-2H-furan-3-one;Alletone;Furaneol;Pineapple ketone;3(2H)-Furanone,4-hydroxy-2,5-dimethyl-;