Quick Detail:
Product name
Ethisterone Factory Supplying
Other name
ANHYDROHYDROXYPROGESTERONE;ANHYDROXYPROGESTERONE
CAS register number
434-03-7
EINECS
207-096-5
Molecular formula
C21H28O2
Molecular weight
312.45
Molecular structure
Ethisterone 434-03-7 Female Sex Human Growth Hormones Steroids Pregneninolone
Assay
98%
Product description:
Ethisterone is a progestogen hormone.
The first orally active progestin, ethisterone (pregneninolone, 17α-ethynyltestosterone or 19-norandrostane), the 17α-ethynyl analog of testosterone, 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.
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).
COA:
Product name
Ethisterone
Appearance
White crystalline powder
Water
≤3%
pass
Assay
98 .0~ 102.0%
99.5%
Loss on drying
≤0.5%
0.2%
Related substances
total impurities ≤1.0%
Pass
any individual impurity ≤0.5%
Pass
Residual solvents
ethanol ≤0.5%
Pass
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