Chemicals and Drugs

Carbon Dioxide

A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals.

Chemical Identity

Chemical Information

Molecular Formula
CO2
Molecular Weight
44.009 g/mol
CAS Registry No.
124-38-9
IUPAC Name
carbon dioxide
InChIKey
CURLTUGMZLYLDI-UHFFFAOYSA-N
SMILES
C(=O)=O
MeSH Unique ID
D002245
Source
PubChem CID 280

MeSH Record

Classification

Narrower headings

Related Concepts

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MeSH Record

See Also

MeSH Record

Synonyms

3 entry terms
  • Carbonic Anhydride
  • Anhydride, Carbonic
  • Dioxide, Carbon

MeSH Record

Aspects Covered

25 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, physiology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

Indexing Annotation

in respiration, /physiol permitted; /metab permitted for cell & tissue resp & non-lung tissue but do not use /metab for gas exchange in lung ( = PULMONARY GAS EXCHANGE) or blood CO2 transport ( = /blood but consider also HYPERCAPNIA & HYPOCAPNIA)

MeSH Hierarchy

Tree Numbers

MeSH Record

NLM Classification

QV 314

AMA Style

References

  1. National Library of Medicine. Carbon Dioxide. Medical Subject Headings (MeSH). 2026. Unique ID D002245. http://id.nlm.nih.gov/mesh/2026/D002245
  2. Carbon Dioxide. In: Wikipedia. https://en.wikipedia.org/wiki/Carbon_dioxide
  3. Carbon Dioxide. In: Wikidata. https://www.wikidata.org/wiki/Q1997
  4. Carbon Dioxide. In: PubChem Compound. CID 280. https://pubchem.ncbi.nlm.nih.gov/compound/280