Chemicals and Drugs

Carbon Monoxide

Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Carbon monoxide (CO). A poisonous colorless, odorless, tasteless gas. It combines with hemoglobin to form carboxyhemoglobin, which has no oxygen carrying capacity. The resultant oxygen deprivation causes headache, dizziness, decreased pulse and respiratory rates, unconsciousness, and death. (From Merck Index, 11th ed)

Chemical Identity

Chemical Information

Molecular Formula
CO
Molecular Weight
28.010 g/mol
CAS Registry No.
630-08-0
IUPAC Name
carbon monoxide
InChIKey
UGFAIRIUMAVXCW-UHFFFAOYSA-N
SMILES
[C-]#[O+]
MeSH Unique ID
D002248
Source
PubChem CID 281

MeSH Record

Classification

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

1 entry terms
  • Monoxide, Carbon

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

MeSH Record

Indexing Annotation

a poisonous gas; /tox permitted but consider also CARBON MONOXIDE POISONING

MeSH Hierarchy

Tree Numbers

MeSH Record

NLM Classification

QV 662

AMA Style

References

  1. National Library of Medicine. Carbon Monoxide. Medical Subject Headings (MeSH). 2026. Unique ID D002248. http://id.nlm.nih.gov/mesh/2026/D002248
  2. Carbon Monoxide. In: Wikipedia. https://en.wikipedia.org/wiki/Carbon_monoxide
  3. Carbon Monoxide. In: Wikidata. https://www.wikidata.org/wiki/Q2025
  4. Carbon Monoxide. In: PubChem Compound. CID 281. https://pubchem.ncbi.nlm.nih.gov/compound/281