甲萘醌（英語： Menadione ，2-甲基-1,4-萘醌，有时也称作维生素K 3 ） [2] 是一种化学式为C 6 H 4 (CO) 2 C 2 H(CH 3)的有机化合物。 此物在体内可由 NQO1 和 UBIAD1 转化为 维生素K （K2, MK-4）， [ 3 ] 但过量使用会导致 活性氧类 产生。

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.

Menadione is a naphthoquinone that is converted into active vitamin K2 in the body. Menadione is a potential anticancer agent and radiosensitizer.

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...

维生素K3，又名甲萘醌，是一种有机化合物，化学式为C11H8O2，在临床上属于促凝血药，可以用于治疗维生素K缺乏所引起的出血性疾病，如新生儿出血、肠道吸收不良所致维生素K缺乏及低凝血酶原血症等。 2017年10月27日，世界卫生组织国际癌症研究机构公布的致癌物清单初步整理参考，维生素K类物质在3类致癌物清单中。 [4] 维生素营养补充剂。 维生素K为肝脏合成原酶（因子B）的必需物质，并参与凝血因子VII，IX和X的合成，维持动物的血液凝固生理过程。 缺乏维 …

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 ...

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.

Menadione, cholesterol and ergosterol showed modulatory activity at clinically relevant concentrations, characterizing them as modifiers of bacterial drug resistance, since they lowered the MIC of the antibiotics tested.

Menadione or 2-methyl-1,4-naphthoquinone (10), most known as vitamin K 3, is a naphthoquinone derivative exclusively synthetic, not found in nature, used as an important precursor to synthesize vitamins K 1 and K 2, being classified as a provitamin (Figure 2) [10].

Menadione 【别名】 维生素K3 【适应症】： ①止血：用于阻塞型黄疸、胆瘘、慢性腹泻、广泛肠切除所致吸收功能不良患者，早产儿、新生儿低凝血酶原 血症，香豆素类或水杨酸类过量以及其他原因所致凝血酶原过低等引起的出血。