Chemicals and Drugs

Vitamin K 2

A group of substances similar to VITAMIN K 1 which contains a ring of 2-methyl-1,4-naphthoquinione and an isoprenoid side chain of varying number of isoprene units. In vitamin K 2, each isoprene unit contains a double bond. They are produced by bacteria including the normal intestinal flora.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A group of substances similar to VITAMIN K 1 which contains a ring of 2-methyl-1,4-naphthoquinione and an isoprenoid side chain of varying number of isoprene units. In vitamin K 2, each isoprene unit contains a double bond. They are produced by bacteria including the normal intestinal flora.

MeSH Record

Classification

Broader headings

Related Concepts

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Drug Class

Pharmacological Action

MeSH Record

Synonyms

4 entry terms
  • Menaquinone
  • Menaquinones
  • Vitamin K Quinone
  • Vitamin K2

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

Indexing Annotation

deficiency: coordinate VITAMIN K 2 (IM) with VITAMIN K DEFICIENCY (IM)

MeSH Record

History Note

2002; use VITAMIN K 1965-2001

MeSH Record

Previous Indexing

  • Vitamin K (1965-2001)

MeSH Hierarchy

Tree Numbers

  1. D02w.455w.426w.559w.847w.638.721w.374w.844w
  2. D02w.455w.849w.291w.523w.500w.844w
  3. D02w.806w.550w.750w
  4. D04w.615w.638.721w.374w.844w

AMA Style

References

  1. National Library of Medicine. Vitamin K 2. Medical Subject Headings (MeSH). 2026. Unique ID D024482. http://id.nlm.nih.gov/mesh/2026/D024482
  2. Vitamin K 2. In: Wikipedia. https://en.wikipedia.org/wiki/Vitamin_K2
  3. Vitamin K 2. In: Wikidata. https://www.wikidata.org/wiki/Q7936967