Standards; Steroids; Pharmaceutical/API Drug Impurities/Metabolites;
應用
╬Ф4-Pregnen-20a-ol-3-one (Progesterone EP Impurity B) is the main metabolite of Progesterone (P755900). Studies shows regulation of estrogen receptor levels in breast cancer by ╬Ф4-Pregnen-20a-ol-3-one and other progesterone metabolites.
參考文獻
Zhang, L. et al.: Yaoz. Xueb., 39, 613 (2004); Pawlak, K.J. et al.: J. Steroid. Biochem. Mol. Biol., 107, 172 (2007);