维生素D3
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别名：
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胆骨化醇;活化7-去氢胆固醇;9,10-开环胆甾-5,7,10(19)-三烯-3beta-醇;(+)-Vitamin D3 7-Dehydrocholesterol activated Activat
产品介绍
MSDS与安全信息
质检证书(CoA)
相关产品
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- 无色结晶。脂溶性维生素，不溶于水，水溶性: <0.1 g/L (20°C) 溶于醇、醚、丙酮和氯仿等大多数有机溶剂，微溶于植物油。在潮湿空气中几天就氧化失活，纯结晶在棕色真空安瓿中冰箱相存放一年后仅有极微量变质。
熔点：86℃
比旋光度[α]20D：108 º(C=0.5, EtOH)
通常维生素D3比维生素D2稳定。D3存在于人和大多数动物组织中，在鱼肝油、肝、鱼子、乳汁、奶油和蛋黄等食物中含D3量丰富。人体皮肤内含有维生素D3的前体7-脱氢胆固醇，经日光或紫外线照射，可转变为D3，故多晒太阳可防止维生素D缺乏。水溶性: <0.1 g/L (20°C) 溶于大多数有机溶剂，微溶于植物油
质量标准
外观Appearance白色至类白色结晶或结晶粉末
红外光谱鉴别Infrared spectrometry 符合
纯度Purity≥98% (HPLC)
熔点Melting point 82°C - 87°C
比旋光度Specific rotation [a]20/D +104° ～ +112° (c=0.5, ethanol)
吸光度Absorbance0.450 ～ 0.495(c=0.001, ethanol, 265 nm)
贮存:2-8°C 避光保存
用途:Vitamin D3 通过受体起作用，该受体是具配体依赖性转录因子大家庭的一员，调控正常细胞和癌细胞的增殖和分化，对乳腺癌、结肠癌和前列腺癌具抗增殖、抗转移效果。肠和骨骼内激活的Vitamin D受体还能维持钙吸收和内平衡。
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Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422
