For 3 - hydroxy - 19 - a - 17 alpha pregnancy,3,5 steroid - 1 (10) -- three xi - 20 - acetylene - 17 - alcohol.
Calculated on dry goods, including C20H24O2 should be 97.0% ~ 103.0%.
This product is white or white crystalline powder; odourless
This product is easily dissolved in ethanol, propanol or ether, dissolved in chloroform, insoluble in water. The melting point of this product (appendix Ⅵ C) for 180 ~ 186 ℃.