Chemicals and Drugs

Acetylene

The simplest two carbon alkyne with the formula HCCH.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The simplest two carbon alkyne with the formula HCCH.

Chemical Identity

Chemical Information

Molecular Formula
C2H2
Molecular Weight
26.04 g/mol
CAS Registry No.
74-86-2
IUPAC Name
acetylene
InChIKey
HSFWRNGVRCDJHI-UHFFFAOYSA-N
SMILES
C#C
MeSH Unique ID
D000114
Source
PubChem CID 6326

MeSH Record

Classification

Broader headings

Related Concepts

Knowledge Graph

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MeSH Record

Synonyms

1 entry terms
  • Ethyne

MeSH Record

Aspects Covered

25 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, 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 Hierarchy

Tree Number

  1. D02w.455w.326.397w.259w

AMA Style

References

  1. National Library of Medicine. Acetylene. Medical Subject Headings (MeSH). 2026. Unique ID D000114. http://id.nlm.nih.gov/mesh/2026/D000114
  2. Acetylene. In: Wikipedia. https://en.wikipedia.org/wiki/Acetylene
  3. Acetylene. In: Wikidata. https://www.wikidata.org/wiki/Q133145
  4. Acetylene. In: PubChem Compound. CID 6326. https://pubchem.ncbi.nlm.nih.gov/compound/6326