Menadione is a synthetic [3] [4] organic compound with the formula C 6 H 4 (CO) 2 C 2 H(CH 3). It is an analog of 1,4-naphthoquinone with a methyl group in the 2-position. [5] It is sometimes called vitamin K 3. Use is allowed as a nutritional supplement in animal feed because of its vitamin K activity.

2020年4月22日 · Vitamin K3, also known as menadione, is a synthetic or artificially produced form of vitamin K. This article explains everything you need to know about vitamin K3, including its benefits,...

Menadione (Vitamin K3) is a fat-soluble vitamin precursor that is converted into menaquinone in the liver. Vitamin K1 and K2 are the naturally occurring types of vitamin K. The former, which is also known as phylloquinone, is synthesized by plants and can be found in such foods as spinach, broccoli, lettuce, and soybeans. The latter, sometimes ...

2005年6月13日 · Menadione (Vitamin K3) is a fat-soluble vitamin precursor that is converted into menaquinone in the liver. Vitamin K1 and K2 are the naturally occurring types of vitamin K. The former, which is also known as phylloquinone, is synthesized by plants and can be found in such foods as spinach, broccoli, lettuce, and soybeans.

2024年10月11日 · Though you won’t see it as an ingredient in your gummy vitamins, menadione is sometimes used in animal feed. But don’t worry about Fido. In FDA-approved doses, K3 appears to be nontoxic for...

Menadione (historically known as vitamin K3) is a synthetic vitamin K precursor comprised of the naphthoquinone ring without a prenylated side chain. You might find these chapters and articles relevant to this topic.

A special naphthoquinone derivative is menadione, a synthetic naphthoquinone belonging to the vitamin K group. This compound can be synthesized by different methods and it has a broad range of biological and synthetic applications, which will be highlighted in this review.

2025年1月7日 · Menadione (Vitamin K3) is a fat-soluble vitamin precursor that is converted into menaquinone in the liver. Vitamin K1 and K2 are the naturally occurring types of vitamin K. The former, which is also known as phylloquinone, is synthesized by plants and can be found in such foods as spinach, broccoli, lettuce, and soybeans.

As a nutritional supplement, Menadione has been investigated for its potential benefits in treating hypoprothrombinemia and other conditions related to Vitamin K deficiency. This article explores the chemical properties, biological roles, medical applications, and safety considerations of …

Another form of vitamin K is made by bacteria living in the intestine. This form is called menaquinone. The synthetic form of vitamin K is called menadione. This form is the most potent. It has two times the activity of phylloquinone. But some experts say that humans may not absorb as much of this form of vitamin K as they had thought.