Tags: Chemical Compound, Chemical Substance.
cis-3-Methyl-4-octanolide also called cis-β-methyl-γ-octalactone or 5-butyldihydro-4-methylfuran-2(3H)-one is a chemical compound of the lactone family with formula C9H16O2. It exists in two optical isomers: 3R4R (+) and 3S4S (-). The 3S4S isomer commonly known as whisky lactone or quercus lactone is an important ingredient in the aroma of whiskey (where it was first identified by Suomalainen and Nykänen in 1970)and other alcoholic beverages that have been aged in oak barrels.
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