decanone

Decanone refers to a group of isomeric organic compounds with the chemical formula C10H20O. Specifically, it is a ketone with a ten-carbon chain where the carbonyl group (C=O) is located at a position other than the terminal carbon. The most common and often implied isomer is 2-decanone, also known as methyl octyl ketone, where the carbonyl group is on the second carbon atom. Other isomers exist where the carbonyl group is located at different positions along the carbon chain, such as 3-decanone, 4-decanone, and 5-decanone.

These compounds are typically colorless liquids with a characteristic odor, often described as fruity or floral, though this can vary depending on the specific isomer and purity. Decanones are generally insoluble in water but soluble in organic solvents like ethanol and ether. They are produced industrially through various synthetic routes, including the oxidation of secondary alcohols or through processes involving fatty acids.

Decanones find applications as flavor and fragrance ingredients in perfumes, cosmetics, and food products due to their pleasant aromas. They can also serve as solvents in certain industrial processes and as intermediates in the synthesis of more complex organic molecules. Their chemical properties are typical of ketones, undergoing reactions such as reduction to secondary alcohols and nucleophilic addition.