menadione
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
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- 411385075
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- Menadione.svg
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- 140
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- Skeletal formula
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- 170
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- Ball-and-stick model
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- 2-Methylnaphthalene-1,4-dione (preferred)
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~4 min read
Article
10 sectionsContents
- 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.