Chemicals and Drugs

Uracil

One of four nucleotide bases in the nucleic acid RNA.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

One of four nucleotide bases in the nucleic acid RNA.

Chemical Identity

Chemical Information

Molecular Formula
C4H4N2O2
Molecular Weight
112.09 g/mol
CAS Registry No.
66-22-8
IUPAC Name
1H-pyrimidine-2,4-dione
InChIKey
ISAKRJDGNUQOIC-UHFFFAOYSA-N
SMILES
C1=CNC(=O)NC1=O
MeSH Unique ID
D014498
Source
PubChem CID 1174

MeSH Record

Classification

Broader headings

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MeSH Record

Aspects Covered

27 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analogs & derivatives, analysis, antagonists & inhibitors, biosynthesis, 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

uracil deoxyriboside, uracil deoxyribonucleoside = DEOXYURIDINE; uracil riboside, uracil ribonucleoside = URIDINE

MeSH Hierarchy

Tree Number

  1. D03w.383.742.698.875w

AMA Style

References

  1. National Library of Medicine. Uracil. Medical Subject Headings (MeSH). 2026. Unique ID D014498. http://id.nlm.nih.gov/mesh/2026/D014498
  2. Uracil. In: Wikipedia. https://en.wikipedia.org/wiki/Uracil
  3. Uracil. In: Wikidata. https://www.wikidata.org/wiki/Q182990
  4. Uracil. In: PubChem Compound. CID 1174. https://pubchem.ncbi.nlm.nih.gov/compound/1174