4-Hydroxy-6-methyl-2-pyrone4-Hydroxy-6-methyl-2H-pyran-2-one 98%4-Hydroxy-6-methyl-2-oxo-2H-pyran4-Hydroxy-6-methyl-2-pyrone4-hydroxy-6-methyl-2H-pyran-2-oneTriacetate lactoneTriacetic acid lactone4-Hydroxy-6-Methyl-a-pyrone;3,5-Dihydroxysorbic acid δ-lactone;4-Hydroxy-6-Methyl-2-Pyrone3,5-Dihydroxysorbic acid δ-lactone4-Hydroxy-6-methyl-2-pyrone3,5-二羟基山梨酸 δ-内酯4-羟基-6-甲基-2-吡喃酮3,5-Dihydroxysorbic acid delta-lactone