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胆钙化醇

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胆钙化醇
IUPAC名
(3β,5Z,7E)-9,10-secocholesta-
5,7,10(19)-trien-3-ol
别名 vitamin D3, activated 7-dehydrocholesterol.
识别
CAS号 67-97-0  checkY=  checkY
ChemSpider 9058792
SMILES
 
  • O[C@@H]1CC(\C(=C)CC1)=C\C=C2/CCC[C@]3(C2CC[C@@H]3[C@H](C)CCCC(C)C)C
InChI
 
  • 1/C27H44O/c1-19(2)8-6-9-21(4)25-15-16-26-22(10-7-17-27(25,26)5)12-13-23-18-24(28)14-11-20(23)3/h12-13,19,21,24-26,28H,3,6-11,14-18H2,1-2,4-5H3/b22-12+,23-13-/t21-,24+,25-,26?,27-/m1/s1
InChIKey QYSXJUFSXHHAJI-QWSSABAFBD
EINECS 200-673-2
DrugBank DB00169
性质
化学式 C27H44O
摩尔质量 384.64 g·mol⁻¹
外观 白色针状晶体
熔点 83–86 °C
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

胆钙化醇[1](英語:Cholecalciferol,又称为维生素D3胆钙化固醇)是维生素D的一种,胆固醇脱氢后生成的7-脱氢胆固醇紫外线照射即可形成胆钙化醇,因此也就是说胆钙化醇的维生素D原是7-脱氢胆固醇。胆钙化醇在肝脏中经羟化酶系作用形成25-羟胆钙化醇,再在肾脏中被羟化为1,25-二羟胆钙化醇,这种物质的活性较胆钙化醇高50%,被证明是维生素D在体内的真正活性形式。且1,25-二羟胆钙化醇属于肾脏分泌的一种激素,因此实际上胆钙化醇也是一种激素原

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胆钙化醇
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