醋酸可的松 |醋酸可的

醋酸可的松

CAS No.: 50-04-4
分子量：402.5
分子式：C23H30O6
英文名：Cortisone Acetaate 　　　
本品为17α,21-二羟基孕甾-4- 烯-3,11,20- 三酮21- 醋酸酯。
【性状】 本品为白色或几乎白色的结晶性粉末；无臭，初无味，随后有持久的苦 　　味。 　　本品在氯仿中易溶，在丙酮或二氧六环中略溶，在乙醇或乙醚中微溶，在水中不溶。 　　比旋度 取本品，精密称定，加二氧六环溶解并定量稀释制成每 1ml中含10mg的溶 　　液，依法测定（附录Ⅵ E），比旋度为+210°至+217°。 　　吸收系数 取本品，精密称定，加无水乙醇溶解并定量稀释制成每1ml 中约含10μ 　　g的溶液，照分光光度法（附录Ⅳ A），在238nm 的波长处测定吸收度，吸收系数（Ｅ 　　1% 1cm）为375 ～405 。

Cortisone acetate

CAS No.: 50-04-4
Molecular Weight: 402.5
Molecular Formula: C23H30O6
English Name: Cortisone Acetaate
This product is 17α, 21 - dihydroxy pregnane -4-- ene -3,11,20 - trione 21 - acetate.
[Character] is white or almost white crystalline powder; odorless, tasteless early, followed by a lasting bitterness. This product is soluble in chloroform, acetone or dioxane, slightly soluble in ethanol or ether, slightly soluble in water insoluble. Than the rotation of this product, accurately weighed, dissolved in dioxane and added quantitatively diluted per 1ml contains 10mg of the solution, according to the determination (Appendix Ⅵ E), optical rotation of +210 ° to +217 °. Absorption coefficient of the product, accurately weighed, dissolved in ethanol and added quantitatively diluted per 1ml of solution containing about 10μ g, according to spectrophotometry (Appendix Ⅳ A), was measured at 238nm wavelength absorption, absorption coefficient (E 1% 1cm) 375 - 405.