Alkyl vs. Aryl

Alkylnoun

(organic chemistry) Any of a series of univalent radicals of the general formula CnH2n+1 derived from aliphatic hydrocarbons.

Alkylnoun

any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons

Alkyl

In organic chemistry, an alkyl substituent is an alkane missing one hydrogen. The term alkyl is intentionally unspecific to include many possible substitutions.

Arylnoun

(organic chemistry) Any univalent organic radical derived from an aromatic hydrocarbon by removing a hydrogen atom.

Aryl

In the context of organic molecules, aryl is any functional group or substituent derived from an aromatic ring, usually an aromatic hydrocarbon, such as phenyl and naphthyl. is used for the sake of abbreviation or generalization, and is used as a placeholder for the aryl group in chemical structure diagrams, analogous to “R” used for any organic substituent.