Chemicals and Drugs

Ergosterol

A steroid occurring in FUNGI. Irradiation with ULTRAVIOLET RAYS results in formation of ERGOCALCIFEROL (vitamin D2).

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A steroid occurring in FUNGI. Irradiation with ULTRAVIOLET RAYS results in formation of ERGOCALCIFEROL (vitamin D2).

Chemical Identity

Chemical Information

Molecular Formula
C28H44O
Molecular Weight
396.6 g/mol
CAS Registry No.
57-87-4
IUPAC Name
(3S,9S,10R,13R,14R,17R)-17-[(E,2R,5R)-5,6-dimethylhept-3-en-2-yl]-10,13-dimethyl-2,3,4,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-3-ol
InChIKey
DNVPQKQSNYMLRS-APGDWVJJSA-N
SMILES
C[C@H](/C=C/[C@H](C)C(C)C)[C@H]1CC[C@@H]2[C@@]1(CC[C@H]3C2=CC=C4[C@@]3(CC[C@@H](C4)O)C)C
MeSH Unique ID
D004875
Source
PubChem CID 444679

MeSH Record

Classification

Broader headings

Narrower headings

Related Concepts

Knowledge Graph

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

5 entry terms
  • Pro-Vitamin D2
  • Provitamin D 2
  • D2, Pro-Vitamin
  • Pro Vitamin D2
  • Lumisterol

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, genetics, history, immunology, isolation & purification, metabolism, pharmacokinetics, pharmacology, poisoning, radiation effects, standards, supply & distribution, therapeutic use, toxicity, urine.

MeSH Record

History Note

74(72); was see under VITAMIN D 1967-73, was see under VITAMIN D 2 1963-66

MeSH Record

Previous Indexing

  • Ergocalciferol (1966)
  • Vitamin D (1967-1971)

MeSH Hierarchy

Tree Number

AMA Style

References

  1. National Library of Medicine. Ergosterol. Medical Subject Headings (MeSH). 2026. Unique ID D004875. http://id.nlm.nih.gov/mesh/2026/D004875
  2. Ergosterol. In: Wikipedia. https://en.wikipedia.org/wiki/Ergosterol
  3. Ergosterol. In: Wikidata. https://www.wikidata.org/wiki/Q143263
  4. Ergosterol. In: PubChem Compound. CID 444679. https://pubchem.ncbi.nlm.nih.gov/compound/444679