CAS NO.: 434-03-7

Assay: 98%

Molecular Formula:C21H28O2

Molecular Weight:312.45

Packing:1kg / foil bags

Appearance: White or milky white crystalline powder. Melting point 269-275 ℃, at 190-195 ℃ in high vacuum sublimation. Slightly soluble in ethanol, acetone, chloroform and vegetable oils, in fact, insoluble in water

Usage:Similar to the yellow like progesterone, for the treatment of excessive menstrual bleeding, or sub-camps can also be used to prevent threatened abortion and habitual abortion. Progesterone is a progestin by the corpus luteum and the placenta secreted is more than the synthetic

Ethisterone (pregneninolone, 17α -ethynyltestosterone or 19-norandrostane) is a progestin. It is the 17α -ethynyl analog of testosterone, and was synthesized in 1938 by Hans Herloff Inhoffen, Willy Logemann, Walter Hohlweg, and Arthur Serini at Schering AG in Berlin and marketed in Germany in 1939 as Proluton C and by Schering in the U. S. In 1945 as Pranone. It was the first orally-active progestin.
Ethisterone was also marketed in the U. S. From the 1950s into the 1960s under a variety of trade names by other pharmaceutical companies that had been members of the pre-World War II European hormone cartel (Ciba, Organon, Roussel).

Other Progesterone Hormones We Supply:
Progesterone CAS No.: 57-83-0
Medroxyprogesterone Acetate CAS Registry Number: 71-58-9
Dienogestrel CAS No.: 65928-58-7
Cyproterone acetate CAS No.: 427-51-0
Megestrol acetate CAS Registry Number: 595-33-5
Chlormadinone acetate CAS Registry Number: 302-22-7
Melengestrol acetate CAS Registry Number: 2919-66-6
Hydroxyprogesterone Caproate CAS Registry Number: 630-56-8
Mifepristone CAS Registry Number: 84371-65-3
Norgestimate CAS Registry Number: 35189-28-7
Drospirenone CAS No.: 67392-87-4
Norethindrone acetate CAS No.: 51-98-9
Ethisterone CAS Registry Number: 434-03-7
Allylestrenol CAS Registry Number: 432-60-0
Pregnenolone CAS No.: 145-13-1
Levonorgestrel CAS No.: 797-63-7


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