Place of Origin: Shandong,China (Mainland)
Vapour pressure: 1.14E-16mmHg at 25°C
Boiling point: 628.6°C at 760 mmHg
Storage condition: 2-8°C
Flashing point: 334°C
Payment & Shipping Terms
according to the customer's requirements
Means of Transport:
Ocean, Air, Land
Mifepristone (or RU-486) is a synthetic steroid compound with both antiprogesterone and antiglucocorticoid properties. The compound is a 19-nor steroid with substitutions at positions C11 and C17 (17 beta-hydroxy-11 beta-[4-dimethylamino phenyl] 17 alpha-[1-propynyl]estra-4,9-dien-3-one), which antagonizes cortisol action competitively at the receptor level.
Mifepristone can also be used in smaller doses as an emergency contraceptive; if taken after sex but before ovulation, it can prevent ovulation and so prevent pregnancy. In this role, a 10 mg dose is not as effective as the 600 mg dose, but has fewer side-effects. Mifeprex and Mifegyne are only available in 200 mg tablets.
A review of studies in humans found that the contraceptive effects of the 10 mg dose were probably due mainly to its effects on ovulation, and not inhibition of implantation, but "the knowledge of the mechanism of action remains incomplete". Treatment with 200 mg of mifepristone changes steroid receptor expression in the fallopian tube, inhibits endometrial development, and effectively prevents implantation.
Mifepristone is approved for use in theUnited Statesand the EU for the treatment of Cushing's Syndrome via a patented preparation manufactured by Corcept Therapeutics.
Use as a cervical ripening agent has also been described.