What is "anethole"

n. (context organic chemistry English) A particular aromatic compound found in anise.

Anethole (anise camphor) is an organic compound that is widely used as a flavoring substance. It is a derivative of phenylpropene, a type of aromatic compound that occurs widely in nature, in essential oils. It contributes a large component of the odor and flavor of anise and fennel (both in the botanical family Apiaceae), anise myrtle ( Myrtaceae), liquorice ( Fabaceae), camphor, magnolia blossoms, and star anise ( Illiciaceae). Closely related to anethole is its isomer estragole, abundant in tarragon ( Asteraceae) and basil ( Lamiaceae), that has a flavor reminiscent of anise. It is a colorless, fragrant, mildly volatile liquid. Anethole is only slightly soluble in water but exhibits high solubility in ethanol. This difference causes certain anise-flavored liqueurs to become opaque when diluted with water, the ouzo effect.