Organic functional group derived from an aromatic ring
Also known as aryl group
15 statements · 13% with external sources · numbers in brackets are citations
11 identifiers linking aryl across the web's reference databases
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In organic chemistry, an aryl is any functional group or substituent derived from an aromatic ring, usually an aromatic hydrocarbon, such as phenyl and naphthyl. "Aryl" is used for the sake of abbreviation or generalization, and "Ar" is used as a placeholder for the aryl group in chemical structure diagrams, analogous to “R” used for any organic substituent. “Ar” is not to be confused with the elemental symbol for argon.