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CAS number: 2152-44-5
Molecular formula: C27H37FO6
molecular weight: 476.57700
Chemical structure:
Product name | Betamethasone Valerate |
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Valerate Shelf life | 3 years |
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Item | Specification | Result |
Appearance | White to practically white powder | White powde |
Identification (by IR) | Conforms to the CRS spectrum. | Conforms |
Specific rotation | +75°-+82° (dried substance) | +76.3° |
Loss on drying | <0.5% | 0.2% |
Residue on ignition | <0.2% | 0.1% |
Related substances (by HPLC) | Any impurity<L0% | 0.29% |
Assay (by HPLC) | Total impurities<2.0% | 0.62% |
Conclusion: | Meet the specification according to USP36 |