产品与服务

中文名 维生素 D3
中文同义 维生素 D3;9,10-开环胆甾-5,7,10(19)-三烯-3beta-醇;胆骨化醇;活化7-去氢胆固醇;维生素D3;维生素D3 结晶体;維他命D3;维生素D3/胆钙骨化醇/9,10-开环胆甾-5,7,10(19)-三烯-3Β-醇/维他命D3/维生素丁3/胆钙化甾醇/活化7-去氢胆固醇/胆骨化醇
英文名 Vitamin D3
英文同义 Vitamin D3 solution;Vitamin D3-d3 Cholecalciferol (6,19,19-d3);Cholecalciferol d6;Vitamin D3-d6;10-Secocholesta-5,7,10(19)-trien-;(5Z,7E,3S)-9,10-Secocholesta-5,7,10(19)-trien-3-ol;3Z-[2E-[(1R,3aS,7aR)-1S-[1R,5-dimethylhexyl]octahydro-7a-methyl-4H-inden-4-ylidene]ethylidene]-4-methylene-cyclohexanol;(+)-VITAMIN D/3, CRYSTALLINE, 99+%
CAS 67-97-0
分子式 C27H44O
分子量 384.64
EINECS 200-673-2
结构式 维生素 D3
性质
熔点 83-86 °C(lit.)
比旋光度 105 º (c=0.8, EtOH 25 ºC)
沸点 451.27°C (rough estimate)
密度 0.9717 (rough estimate)
蒸气压 2.0 x l0-6 Pa (20 °C, est.)
折射率 1.5100 (estimate)
闪点 14 °C
储存条件 2-8°C
溶解度 Practically insoluble in water, freely soluble in ethanol (96 per cent), soluble in trimethylpentane and in fatty oils. It is sensitive to air, heat and light. Solutions in solvents without an antioxidant are unstable and are to be used immediately. A reversible isomerisation to pre-cholecalciferol takes place in solution, depending on temperature and time. The activity is due to both compounds.
形态 powder
酸度系数(pKa) 14.74±0.20(Predicted)
水溶解性 <0.1 g/L (20 ºC)
敏感性 Air & Light Sensitive
Merck 14,10019
BRN 2339331
InChIKey QYSXJUFSXHHAJI-YRZJJWOYSA-N
NIST化学物质信息 Cholecalciferol(67-97-0)
EPA化学物质信息 Cholecalciferol (67-97-0)