... -methyl-octalactone or 4-methyl-5-butyl-2H-furanone-2Whisky lactone has another name of β-methyl-γ-octalactone,which is one of ... of aroma in whisky,and generally it is called whisky lactone.Appearance: Colorless to pale yellow liquidOdor: a very fiece,stong ... tobacco essence,its aroma is much more elegant than coumarin lactone,and it have a wide range of aroma.According to ...