This article is about the aryl organic functional group. For the biological gene, see Aryl hydrocarbon receptor. The Aryl hydrocarbon receptor ( AhR or AHR) is a member of the family of Basic-helix-loop-helix Transcription factors AhR is a cytosolic transcription For the fleshy covering of certain seeds, see aril. Distinguish from Aryl, which is a type of organic chemical radical

In the context of organic molecules, aryl refers to any functional group or substituent derived from a simple aromatic ring, may it be phenyl, thiophenyl, indolyl, etc (see IUPAC nomenclature). In Organic chemistry, functional groups are specific groups of Atoms within Molecules that are responsible for the characteristic Chemical reactions In Organic chemistry, a substituent is an atom or group of atoms substituted in place of a Hydrogen atom on the Parent chain of a Hydrocarbon Simple aromatic rings, also known as simple arenes or simple aromatics, are Aromatic Organic compounds that consist only of a conjugated In Organic chemistry, the phenyl group or phenyl ring (often abbreviated as -Ph) is the Functional group with the formula - Thiophene is the Heterocyclic compound with the formula C4H4S Indole is an Aromatic heterocyclic Organic compound. It has a bicyclic structure consisting of a six-membered Benzene ring fused to a five-membered IUPAC Nomenclature is a system of naming Chemical compounds and of describing the science of Chemistry in general "Aryl" is used for the sake of abbreviation or generalization.

A simple aryl group is phenyl, C₆H₅; it is derived from benzene. In Organic chemistry, the phenyl group or phenyl ring (often abbreviated as -Ph) is the Functional group with the formula - Benzene, or benzol, is an organic Chemical compound and a known Carcinogen with the molecular formula C 6 H 6 The tolyl group, CH₃C₆H₄, is derived from toluene (methylbenzene). Toluene, also known as methylbenzene or phenylmethane, is a clear water -insoluble liquid with the typical smell of Paint thinners redolent of The xylyl group, (CH₃)₂C₆H₃, is derived from xylene (dimethylbenzene). A xylyl is one of a group of chemical radicals denoted by the formula (CH32C6H3 o-Xylene|m-Xylene|p-XyleneThe term xylene or xylol refers to a mixture of three Benzene derivatives which is used as a Solvent in the Printing

A few different types of benzene derived aryl groups. From left to right: phenyl, benzyl, tolyl, o-xylyl. In Organic chemistry, the phenyl group or phenyl ring (often abbreviated as -Ph) is the Functional group with the formula - In Organic chemistry, benzyl is the term used to describe the Substituent or molecular fragment possessing the structure C6H5CH2- A xylyl is one of a group of chemical radicals denoted by the formula (CH32C6H3

Biaryls may display axial chirality. S-BINOL-2D-skeletalpng|thumb| eg S-binol]] Axial chirality is a special case of chirality in which a Molecule does not possess a Stereogenic center

See also

• Alkyl
• Aromatic hydrocarbon
• Aromaticity
• Heterocycle