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naturally produced organic alcohols. One of several chemical defense compounds in trees.

phenols (Wikipedia)
This article is about the class of chemicals containing a phenol group. For the molecule alone, see Phenol.

In organic chemistry, phenols, sometimes called phenolics, are a class of chemical compounds consisting of one or more hydroxyl groups (−O H) bonded directly to an aromatic hydrocarbon group. The simplest is phenol, C
6H
5OH. Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the molecule.

Phenol – the simplest of the phenols
Chemical structure of salicylic acid, the active metabolite of aspirin

Phenols are both synthesized industrially and produced by plants and microorganisms.

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