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Ethisterone cas 434-03-7 female skin whiteing
1.product descroption:
Product Description
Name: Ethisterone
CAS No.: 434-03-7
Formula: C21H28O2
Molecular Weight: 312.49
EINECS: 207-096-5
Assay: 99%
Appearance: Off-white powder
Package: 1kg/foil bag or according to the customers requirements.
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
2.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 |
3.more details:
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).
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5.Packaging & Delivery:
1).Our prefessional team Continued for innovation, transformation,has developed our own packaging features,this safe packing can ensure 100% pass customs
2). Resent policy is available (Depends on the situation )that guarantee every customer interests.
3).Delivery Within 24 hours after payment, usually just take 3-5 days received when shipped
(4).shipping ways:Ems,Tnt ,Fedex,Dhl,By Air ,etc,
(5).Payment terms: Western Union, Moneygram, Bank Transfer
6, If u chose us, advantages are:
1)High quality products with competived market price.
2)Quality Control:Produced under GMP, UP, SP standard,u will love my products
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5)About us:company name:GUANGZHOU QUANAO CHEMICAL CO .,LTD
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