3-Methyl-4-octanolide

3-Methyl-4-octanolide, cis and trans isomers.

3-Methyl-4-octanolide, also called β-methyl-γ-octalactone or 5-butyldihydro-4-methylfuran-2-one can be any of two chemical products of the lactone family:

• cis-3-Methyl-4-octanolide, or "whisky lactone", the component of oak wood that imparts flavor to whisky
• trans-3-Methyl-4-octanolide, also found in oak wood.

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