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Also known as phenol compound, phenolics, phenol-containing compound, arenol, phenols, phenolic compound

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, . Phenolic compounds are classified as simple phenols or polyphenols based on the number of phenol units in the molecule. thumb|right|Phenol the simplest of the phenols thumb|right|144px|Chemical structure of salicylic acid, the [[active metabolite of aspirin]]