CAS NO: 5593-20-4
Molecular Formula: C28H37FO7
Molecular Weight: 504.59
Use: It is used in the treatment of skin inflammation and pruritus, such as neurodermitis, lupus erythematosus discoides etc.
Structural Formula:
Product Name: Betamethasone dipropionate |
Batch No.: 20070104 |
Qty.: 100Kg |
Analysis Date: 20070104 |
Date manufactured: 20070104 |
Period of validity: 2007.01.04-2009.01.04 |
Standard: USP28 |
Test Item |
Details |
Test Result |
Appearance |
white crystal or powder |
white crystal |
Specific rotation |
+63 - +70°C |
+64.7°C |
Identification |
infra-red spectrum |
accord with normal frequency spectrum |
Drying Loss |
≤0.5% |
0.4% |
Related Substances |
impurities≤1.5% |
impurities≤0.8% |
>1.0% only one kind of impurity allowed |
>1.0% impurity: none |
total impurity≤2.0% |
1.291% |
Residue on Ignition |
≤0.2% |
0.03% |
Assay |
≥97.0% |
98.83% |
Conclusion: Qualified |
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