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Descriptor in English: Quaternary Ammonium Compounds
Descriptor in Spanish: Compuestos de Amonio Cuaternario
Descriptor in Portuguese: Compostos de Amônio Quaternário
Descriptor in French: Composés d'ammonium quaternaire
Entry term(s): Ammonium Compounds, Quaternary
Tree number(s): D01.625.062.500
D02.092.877
D02.675.276
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.
Annotation: general or unspecified; prefer specifics
Allowable Qualifiers: AD administration & dosage
AE adverse effects
AG agonists
AI antagonists & inhibitors
AN analysis
BL blood
CF cerebrospinal fluid
CH chemistry
CL classification
CS chemical synthesis
EC economics
HI history
IM immunology
IP isolation & purification
ME metabolism
PD pharmacology
PK pharmacokinetics
PO poisoning
RE radiation effects
SD supply & distribution
ST standards
TO toxicity
TU therapeutic use
UR urine
History Note: 2006(1963)
See also the descriptors: Pyridinium Compounds MeSH
Quinolinium Compounds MeSH
DeCS UI: 659
Descriptor UI: D000644
Date Established: 2006/01/01
Date of Entry: 1999/01/01
Revision Date: 2013/07/08
Quaternary Ammonium Compounds - Preferred
Concept UI M0474216
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.
Preferred term Quaternary Ammonium Compounds
Entry term(s) Ammonium Compounds, Quaternary



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