Norgestrienone is discontinued (DEA controlled substance). It is a synthetic steroid with progestational and contraceptive activities. It has been studied as a therapaeutic agent in hereditary angioneurotic edema. References: Zhang YX. Effect of mifepristone in the different treatments of endometriosis. Clin Exp Obstet Gynecol. 2016;43(3):350-3. PubMed PMID: 27328489.

纯度：≥98%

CAS：848-21-5