See also: functional group.
In organic chemistry, a moiety (//) is a part of a molecule which is typically given a name as it can be found within other kinds of molecules as well. For instance, the acetyl moiety is a component of many organic compounds, including acetic acid, acetylcholine, acetyl-CoA, acetylcysteine, acetaminophen (also known as paracetamol), and acetylsalicylic acid (better known as aspirin).
Moieties and functional groups may contain smaller moieties, or be contained in a larger moiety. For example, methyl p-hydroxybenzoate contains a phenol functional group within the acyl moiety, which in turn is part of the paraben moiety. Larger moieties are often functional groups.
- "moiety". IUPAC. Compendium of Chemical Terminology (the "Gold Book") (2 ed.). disco Scientific Publications. 2014-02-24. doi:10.1351/goldbook.M03968. ISBN 0-9678550-9-8.
- "Illustrated Glossary of Organic Chemistry - Moiety". web.chem.ucla.edu. Retrieved 2017-04-22.
- "functional group". IUPAC. Compendium of Chemical Terminology (the "Gold Book") (2 ed.). Blackwell Scientific Publications. 2014-02-24. doi:10.1351/goldbook.F02555. ISBN 0-9678550-9-8.
- Mezey, P. G. (October 1996). "Functional Groups in Quantum Chemistry". Advances in Quantum Chemistry. 27: 165. ISBN 978-0-08-058252-8.