Chemicals and Drugs

Tannins

Polyphenolic compounds with molecular weights of around 500-3000 daltons and containing enough hydroxyl groups (1-2 per 100 MW) for effective cross linking of other compounds (ASTRINGENTS). The two main types are HYDROLYZABLE TANNINS and CONDENSED TANNINS. Historically, the term has applied to many compounds and plant extracts able to render skin COLLAGEN impervious to degradation. The word tannin derives from the Celtic word for OAK TREE which was used for leather processing.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

Polyphenolic compounds with molecular weights of around 500-3000 daltons and containing enough hydroxyl groups (1-2 per 100 MW) for effective cross linking of other compounds (ASTRINGENTS). The two main types are HYDROLYZABLE TANNINS and CONDENSED TANNINS. Historically, the term has applied to many compounds and plant extracts able to render skin COLLAGEN impervious to degradation. The word tannin derives from the Celtic word for OAK TREE which was used for leather processing.

MeSH Record

Classification

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Synonyms

1 entry terms
  • Tannin

MeSH Record

Aspects Covered

26 allowable subheadings

Indexed with the subheadings administration & dosage, adverse effects, agonists, 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

Indexing Annotation

HYDROLYZABLE TANNINS is also available

MeSH Record

History Note

2022 (1966)

MeSH Hierarchy

Tree Numbers

MeSH Record

NLM Classification

QV 65

AMA Style

References

  1. National Library of Medicine. Tannins. Medical Subject Headings (MeSH). 2026. Unique ID D013634. http://id.nlm.nih.gov/mesh/2026/D013634
  2. Tannins. In: Wikipedia. https://en.wikipedia.org/wiki/Tannin
  3. Tannins. In: Wikidata. https://www.wikidata.org/wiki/Q187607