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menadione

Structure via PubChem · Public domain (PubChem)

EntityQ192471· pop 26· linked from 161 articles

Also known as 2-methyl-1,4-dihydronaphthalene-1,4-dione, MNQ, Vitamin K0, 2-methyl-1,4-Naphthalenedione, 2-methyl-1,4-naphthochinon, 2-methyl-1,4-naphthoquinone, vitamin K3, 3-methyl-1,4-naphthoquinone

Menadione is a natural organic compound with the formula C6H4(CO)2C2H(CH3). It is an analog of 1,4-naphthoquinone with a methyl group in the 2-position. It is sometimes called vitamin K3. Use is allowed as a nutritional supplement in animal feed because of its vitamin K activity.

Key facts

Drug.Verifiedfields
changed
Drug.Watchedfields
changed
Drug.verifiedrevid
411385075
Drug.image
Menadione.svg
Drug.width
140
Drug.alt
Skeletal formula
Drug.image_class
skin-invert-image
Drug.image2
Menadione-from-xtal-3D-bs-17.png
Drug.image_class2
bg-transparent
Drug.width2
170
Drug.alt2
Ball-and-stick model
Drug.IUPAC_name
2-Methylnaphthalene-1,4-dione (preferred)
Drug.synonyms
Menaphthone; Vitamin K3; β-Methyl-1,4-naphthoquinone; 2-Methyl-1,4-naphthodione; 2-Methyl-1,4-naphthoquinone
Drug.ATC_prefix
B02
Drug.ATC_suffix
BA02
Drug.CAS_number
58-27-5
Drug.PubChem
4055
Drug.DrugBank
DB00170

via Wikipedia infobox

Chemical data

Formula
C11H8O2
Molecular weight
172.18 g/mol
IUPAC name
2-methylnaphthalene-1,4-dione
SMILES
CC1=CC(=O)C2=CC=CC=C2C1=O
InChIKey
MJVAVZPDRWSRRC-UHFFFAOYSA-N
XLogP
2.2
Polar surface area
34.1 Ų
H-bond donors
0
H-bond acceptors
2
Formal charge
0

via PubChem

Research

3,944 papers

via PubMed

~4 min read

Encyclopedic overview

10 sections
Contents
  • Biochemistry
  • Terminology
  • Derivatives
  • Uses
  • Animal feed
  • Human use
  • Toxicology
  • See also
  • References
  • External links

Menadione is a natural organic compound with the formula C6H4(CO)2C2H(CH3). It is an analog of 1,4-naphthoquinone with a methyl group in the 2-position. It is sometimes called vitamin K3. Use is allowed as a nutritional supplement in animal feed because of its vitamin K activity.

== Biochemistry == Menadione is converted to vitamin K2 (specifically, MK-4) by the prenyltransferase action of vertebrate protein UBIAD1. This reaction requires the hydroquinone (reduced) form of K3, menadiol, produced by NQO1.

Excerpted from Wikipedia’s “menadione” article, available under the CC BY-SA 4.0 licence.

Gallery (2)