.Betamethasone 2.USP /BP standard 3.Content: not less than 98.5% 4.Antibiotic and Antimicrobial Agents 5.GMP
ITEM | SPECIFICATION | RESULTS |
Discription | A white to almost white, odorless, crystalline powder. | White, crystalline powder |
Identification | IR, UV, HPLC | Positive |
Specific rotation: | +118 ~ +126 . | +118.3 |
Loss on drying | ≤0.5% | 0.16% |
Residue on ignition | ≤0.1% | 0.06% |
Relative substance | total not more than 1.0% | 0.8% |
Single not more than 0.5% | 0.3% | |
Assay | 97%~103% | 98.8% |
Conclusion: this batch of product conform to USP 31.
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Betamethasone(CAS NO 378-44-9 )