Filbertone is the principal flavor compound of hazelnuts.

[1] It is used in perfumery and is designated as generally recognized as safe (GRAS) for use in food products.

[2] Because filbertone is found in hazelnut oil, its presence can be used to detect the adulteration of olive oil with less expensive hazelnut oil.

[3][4] The natural compound is a mixture of both enantiomers, and its composition can vary depending on the source.

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