Because of a lapse in government funding, the information on this website may not be up to date, transactions submitted via the website may not be processed, and the agency may not be able to respond to inquiries until appropriations are enacted. The NIH Clinical Center (the research hospital of NIH) is open. For more details about its operating status, please visit cc.nih.gov. Updates regarding government operating status and resumption of normal operations can be found at opm.gov.

NLM Logo

Quaternary Ammonium Compounds MeSH Descriptor Data 2026


MeSH Heading
Quaternary Ammonium Compounds
Tree Number(s)
D01.625.062.500
D02.092.877
D02.675.276
Unique ID
D000644
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D000644
Annotation
general or unspecified; prefer specifics
Scope Note
Derivatives of ammonium compounds, NH4+ Y-, in which all four of the hydrogens bonded to nitrogen have been replaced with hydrocarbyl groups. These are distinguished from IMINES which are RN=CR2.
Entry Version
QUATERNARY AMMONIUM CPDS
Entry Term(s)
Quaternary Ammonium Compound
Registry Numbers
0
See Also
Pyridinium Compounds
Quinolinium Compounds
Public MeSH Note
2006; see AMMONIUM COMPOUNDS 1963-2005
History Note
2006(1963)
Date Introduced
2006/01/01
Last Updated
2020/05/27
Quaternary Ammonium Compounds Preferred
page delivered in 0.176s