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High Purity Estrogen Hormone Raw Powder Ethisterone CAS 434-03-7 USP Standard
CAS No.: 434-03-7
Molecular Weight: 312.49
Appearance: Off-white powder
Density: 1.13 g/cm3
Melting Point: 263-269 °C(lit.)
Boiling Point: 446.4 °C at 760mmHg
Flash Point: 190.2 °C
Storage: Keep it under seal in cool and dark place
There is evidence to indicate that exposure to Ethisterone during pregnancy may have a teratogenic effect on the fetus. A teratogen is a substance that can cause birth defects. The likelihood and severity of defects may be affected by the level of exposure and the stage of pregnancy that the exposure occurred at. More detailed information about the symptoms, causes, and treatments of Ethisterone -- Teratogenic Agent is available below.
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).
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All the products are in good quality and product purity is above 99%.Before products come into the market,we have strict inspecting,this step is also important for ourselves,regular customer need the same products,so the specification must be the same as befere or above.whats more, third party inspection is essential.The quality inspection report is avaliable for you.