3-Hydroxy-2-methyl-4H-pyran-4-onePalatoneMaltolLarixinic acidVeltol3-HYDROXY-2-METHYL-1,4-PYRONE麦芽醇3-Hydroxy-2-methyl-4-pyroneMaltol solutionMaltol3-羟基-2-甲基-4-吡喃酮Maltol麦芽酚3-Hydroxy-2-methyl-4-pyrone solution2-甲基-3-羟基-4-吡喃酮2-甲基-3-羟基-4-吡喃酮麦芽酚 溶液3-羟基-2-甲基-4-吡喃酮 溶液3-Hydroxy-2-methyl-4-pyrone3-HYDROXY-2-METHYL-4-PYRONE