Chemicals and Drugs

Sodium

A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A member of the alkali group of metals. It has the atomic symbol Na, atomic number 11, and atomic weight 23.

Chemical Identity

Chemical Information

Molecular Formula
Na
Molecular Weight
22.9897693 g/mol
CAS Registry No.
7440-23-5
IUPAC Name
sodium
InChIKey
KEAYESYHFKHZAL-UHFFFAOYSA-N
SMILES
[Na]
MeSH Unique ID
D012964
Source
PubChem CID 5360545

MeSH Record

Classification

Narrower headings

Related Concepts

Knowledge Graph

Loading graph…

Drag nodes to rearrange; hover to trace links; click a node to open its page.

MeSH Record

See Also

MeSH Record

Synonyms

5 entry terms
  • Sodium-23
  • Sodium 23
  • Sodium Ion Level
  • Ion Level, Sodium
  • Level, Sodium Ion

MeSH Record

Aspects Covered

24 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, blood, cerebrospinal fluid, chemistry, classification, deficiency, economics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

Indexing Annotation

/blood: note also HYPERNATREMIA& HYPONATREMIA; /defic: consider also HYPONATREMIA; /urine: consider also NATRIURESIS; SODIUM, DIETARY is also available

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Sodium. Medical Subject Headings (MeSH). 2026. Unique ID D012964. http://id.nlm.nih.gov/mesh/2026/D012964
  2. Sodium. In: Wikipedia. https://en.wikipedia.org/wiki/Sodium
  3. Sodium. In: Wikidata. https://www.wikidata.org/wiki/Q658
  4. Sodium. In: PubChem Compound. CID 5360545. https://pubchem.ncbi.nlm.nih.gov/compound/5360545