- Min.Order :1 Kilogram
- Purity: 99%min
- Payment Terms : L/C,T/T
Keywords
438-67-5 Estrone sodium sulphate estrone 3-sulfate sodium
Quick Details
- Appearance:White powder
- Application:Metabolism Drug; Carcino-Chemotherapeutic Drug
- PackAge:drum
- ProductionCapacity:1000|Metric Ton|Year
- Storage:Store in cool and dry place, away from sun light.
- Transportation:By sea or by air
Superiority:
Details:
|
Items |
Specification
|
Results |
|
appearance |
White or slightly yellow, crystalline powder |
White crystalline |
|
Solubility |
Practically insoluble in water, soluble in methylene chloride, slightly soluble in anhydrousethanol |
confirms |
|
Identification (IR) |
same wave numbers as that of the Vinpocetine, CRS similarly prepared CRS similarly prepared. |
Conforms |
|
Specific Optical Rotation(On dried basis) |
Between +127° and +134° |
+132.7° |
|
Related Substances (External Standard method) |
||
|
Ethyl vincaminate(A) |
≤0.6% |
Conforms |
|
Apovincamine(B) |
≤0.5% |
Conforms |
|
Methoxyvinpocetine(C) |
≤0.3% |
Not detected |
|
Dihydrovinpocetine(D) |
≤ 0.5% |
Not detected |
|
Other single impurity |
≤0.10% |
Conforms |
|
Total impurity |
≤ 1.0% |
0.19% |
|
Loss on drying
|
≤ 0.5% |
0.04% |
|
Sulphated ash
|
≤ 0.1% |
0.07% |
|
Assay(On dried basis) |
98.5% ~101,5% , |
100.2% |
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