CAS NO: 2152-44-5
Molecular Structure:
Molecular Formula: C27H37FO6
Molecular Weight: 476.58
M.P.: around 192°C
Use: Betamethasone 17-valerate is anti-inflammation, antianaphylaxis and itching relieving. It can inhibit most gram-positive/negative bacterium.
Test analysis report:
Product Name: Betamethasone 17-valerate |
Batch No.: 20070215 |
Qty.: 100Kg |
Analysis Date: 20070215 |
Date manufactured: 20070215 |
Period of validity: 2007.02.15-2009.02.15 |
Standard: USP28/BP2004/EP5 |
Test Item |
Details |
Test Result |
Appearance |
white crystal or powder |
white crystal |
Identification |
infra-red spectrum |
accord with normal frequency spectrum |
Specific rotation |
+75°C - +82°C |
+79.6°C |
Drying Loss |
≤0.5% |
0.3% |
Residue on Ignition |
≤0.2% |
0.15% |
Related Substances |
≤4.5%(1.0-1.7) |
1.98% |
Assay |
≥97.0% |
99.80% |
Conclusion: Qualified |
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