Chemicals and Drugs

Deuterium Oxide

The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The isotopic compound of hydrogen of mass 2 (deuterium) with oxygen. (From Grant & Hackh's Chemical Dictionary, 5th ed) It is used to study mechanisms and rates of chemical or nuclear reactions, as well as biological processes.

Chemical Identity

Chemical Information

Molecular Formula
H2O
Molecular Weight
20.028 g/mol
CAS Registry No.
7789-20-0
IUPAC Name
deuterated water
InChIKey
XLYOFNOQVPJJNP-ZSJDYOACSA-N
SMILES
[2H]O[2H]
MeSH Unique ID
D017666
Source
PubChem CID 24602

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

3 entry terms
  • Heavy Water
  • Oxide, Deuterium
  • Water, Heavy

MeSH Record

Aspects Covered

24 allowable subheadings

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

MeSH Record

History Note

94; was DEUTERIUM OXIDE (NM) 1980-93

MeSH Record

Previous Indexing

  • Deuterium (1980-1993)
  • Water (1980-1993)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Deuterium Oxide. Medical Subject Headings (MeSH). 2026. Unique ID D017666. http://id.nlm.nih.gov/mesh/2026/D017666
  2. Deuterium Oxide. In: Wikipedia. https://en.wikipedia.org/wiki/Heavy_water
  3. Deuterium Oxide. In: Wikidata. https://www.wikidata.org/wiki/Q155890
  4. Deuterium Oxide. In: PubChem Compound. CID 24602. https://pubchem.ncbi.nlm.nih.gov/compound/24602