Separation of 24- and 25-dehydrocholesterols; and the impure state of commercial desmosterol preparations

Journal of Lipid Research

Malcolm J. Thompson¹  James A. Svoboda¹ 

[1] Insect Physiology Laboratory, Entomology Research Division, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Maryland 20705;

关键词: 24- and 25-dehydrocholesterols;    separation;    silver nitrate;    thin-layer;    column;    chromatography;   

DOI  :  

来源: DOAJ

【 摘 要 】

Chromatographic methods for the separation of 24- and 25-dehydrocholesterols are described. The purities of three commercial samples of 24-dehydrocholesterol examined by thin-layer and gas-liquid chromatography were only 42, 79, and 80%, respectively; a commercial sample of radioactive 24-dehydrocholesterol was shown to contain 40% 25-dehydrocholesterol.

【 授权许可】

Unknown