Chemicals and Drugs

Iron

A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A metallic element with atomic symbol Fe, atomic number 26, and atomic weight 55.85. It is an essential constituent of HEMOGLOBINS; CYTOCHROMES; and IRON-BINDING PROTEINS. It plays a role in cellular redox reactions and in the transport of OXYGEN.

Chemical Identity

Chemical Information

Molecular Formula
Fe
Molecular Weight
55.84 g/mol
CAS Registry No.
7439-89-6
IUPAC Name
iron
InChIKey
XEEYBQQBJWHFJM-UHFFFAOYSA-N
SMILES
[Fe]
MeSH Unique ID
D007501
Source
PubChem CID 23925

MeSH Record

Classification

Narrower headings

Related Concepts

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Drug Class

Pharmacological Action

MeSH Record

See Also

MeSH Record

Synonyms

2 entry terms
  • Iron-56
  • Iron 56

MeSH Record

Aspects Covered

23 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, analysis, blood, cerebrospinal fluid, 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

Fe(II) = FERROUS COMPOUNDS, Fe(III) = FERRIC COMPOUNDS; /defic: use IRON DEFICIENCIES; ANEMIA, IRON DEFICIENCY is also available; pneumoconiosis caused by iron particles = SIDEROSIS; /metab: consider also IRON OVERLOAD; metabolic disorders = IRON METABOLISM DISORDERS

MeSH Record

History Note

/metabolism was IRON METABOLISM 1963-65

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Iron. Medical Subject Headings (MeSH). 2026. Unique ID D007501. http://id.nlm.nih.gov/mesh/2026/D007501
  2. Iron. In: Wikipedia. https://en.wikipedia.org/wiki/Iron
  3. Iron. In: Wikidata. https://www.wikidata.org/wiki/Q677
  4. Iron. In: PubChem Compound. CID 23925. https://pubchem.ncbi.nlm.nih.gov/compound/23925