Chemicals and Drugs

Mestranol

The 3-methyl ether of ETHINYL ESTRADIOL. It must be demethylated to be biologically active. It is used as the estrogen component of many combination ORAL CONTRACEPTIVES.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

The 3-methyl ether of ETHINYL ESTRADIOL. It must be demethylated to be biologically active. It is used as the estrogen component of many combination ORAL CONTRACEPTIVES.

Chemical Identity

Chemical Information

Molecular Formula
C21H26O2
Molecular Weight
310.4 g/mol
CAS Registry No.
72-33-3
IUPAC Name
(8R,9S,13S,14S,17R)-17-ethynyl-3-methoxy-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-ol
InChIKey
IMSSROKUHAOUJS-MJCUULBUSA-N
SMILES
C[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C#C)O)CCC4=C3C=CC(=C4)OC
MeSH Unique ID
D008656
Source
PubChem CID 6291

MeSH Record

Classification

Broader headings

Related Concepts

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

3 entry terms
  • 19-Norpregna-1,3,5(10)-trien-20-yn-17-ol, 3-methoxy-, (17alpha)-
  • Ethinyl Estradiol 3-Methyl Ether
  • Ethinyl Estradiol 3 Methyl Ether

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 Record

History Note

65(64)

MeSH Hierarchy

Tree Numbers

AMA Style

References

  1. National Library of Medicine. Mestranol. Medical Subject Headings (MeSH). 2026. Unique ID D008656. http://id.nlm.nih.gov/mesh/2026/D008656
  2. Mestranol. In: Wikipedia. https://en.wikipedia.org/wiki/Mestranol
  3. Mestranol. In: Wikidata. https://www.wikidata.org/wiki/Q904308
  4. Mestranol. In: PubChem Compound. CID 6291. https://pubchem.ncbi.nlm.nih.gov/compound/6291