25-羟基维生素D3 一水合物, 99%

我要购买

产品编号:H114379

产品规格:1mg

产品价格:6400


产品详情

  25-羟基维生素D3 一水合物, 99%

  Product Name: 25-Hydroxyvitamin D3 monohydrate
  别名:25-羟基维生素D3 ;骨化二醇,(5Z,7E)-9,10-开环胆甾-5,7,10(19)-三烯-3b,25-二醇一水合物
  CAS号:63283-36-3
  分子式:C27H44O2·H2O
  分子量:418.65
  特定比重: 1.3
  生化和生理学机理:
  Calcifediol is a prehormone that is produced in the liver by hydroxylation of vitamin D3 (cholecalciferol) by the enzyme cholecalciferol 25-hydroxylase which was isolated by Michael F. Holick. This metabolite is being measured by physicians worldwide to determine a patient's vitamin d status.Calcifediol is then converted in the kidneys (by the enzyme 25(OH)D-1α-hydroxylase) into calcitriol (1,25-(OH)2D3), a secosteroid hormone that is the active form of vitamin D. It can also be converted into 24-hydroxycalcidiol in the kidneys via 24-hydroxylation. From Wikipedia