久草首页视频在线观看|羞羞网站男女午夜|精品 网站 不卡|无码有码一区二区|日产又大又黄又爽又猛|1024欧美一级|www,久久久久久久,c0m|欧美熟女精品国产精品|综合开心四月婷婷|久久强奸免费视频

  • HOME
  • ABOUT US
  • NEWS
  • OVERVIEW
  • ORDER
  • CONTACT US
  • CHINESE
0102
02 / 04
Vitamin K2



Vitamin K2 is a kind of natural vitamin containing the basic structure of menadione and having anti-bleeding effect, vitamin K2 is a fat-soluble vitamin, a derivative of naphthoquinone group with the biological activity of chlorophyloquinone, is one of the indispensable important vitamins in the human body。

 

CAS NO.:11032-49-8

Molecular formula: C16H16O2.(C5H8)n





  Previous product: Alpha-Glucosyl Hesperidin
  Next product: Nicotinamide mononucleotide