Chavicol (p-allylphenol) is a natural phenylpropene, a type of organic compound.

It is a colorless liquid found together with terpenes in betel oil.

It is found in many essential oils, including anise and gardenia.

[2] Chavicol is formed in sweet basil (Ocimum Basilicum) by the phenylpropanoid pathway via p-coumaryl alcohol.

This then leaves thus forming a cation, this cation can be regarded as a quinone methide which then is reduced by NADPH to form either anol or chavicol.