China Factory Supply Top Quality Progestin Ethisterone Powder (CAS 434-03-7) Online
What is Ethisterone?
Ethisterone, also known as ethinyltestosterone, pregneninolone, or anhydrohydroxyprogesterone, is a progestin with androgenic activity which was derived from testosterone.
Ethisterone was the second progestogen to be marketed and was both the first orally active progestogen and the first progestin (synthetic progestogen) to be introduced. Moreover, the 19-nortestosterone progestins, such as norethisterone, are derived from ethisterone and are widely used as hormonal contraceptives and for other indications.
Ethisterone Chemical Profile
CAS: 434-03-7
EINECS Number: 207-096-5
MF:: C21H28O2
MW: 312.4458
Density: 1.13g / cm3
Melting point: 266-273 ºC
Boiling point: 446.4 ° C at 760 mmHg
Flash Point: 190.2 ° C
Vapor Pressure: 7.59E-10mmHg at 25 ° C
Usage: for the treatment of uterine bleeding or menorrhagia
Assay: 99%
Appearance: White crystalline powder
Ethisterone Certificate Of Analysis
| TEST ITEMS |
SPECIFICATION |
RESULTS |
| Description |
White or Almost White Crystalline Powder |
white powder |
| Identification |
A.B. |
Positive |
| Assay |
97.0~102.0% |
99.3% |
| Specific Rotation |
+101°~+105° |
+102.6° |
| Loss On Drying |
1.0%max |
0.27% |
| Melting Point |
153~157°C |
153.0~155.0°C |
| Organic Volatile Impurities |
meets the requirement. |
Conforms |
| Related Substances |
meets the requirement. |
Conforms |
| Residual Solvents |
meets the requirement. |
Conforms |
| Particle Size |
100% ≤ 20 microns |
Conforms |
| Conclusion |
The specification conform with USP30 standard |
