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Dexamethasone sodium phosphate Dexamethasone sodium phosphate 55203-24-2 99% Dexamethasone sodium phosphate
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Items |
Standard |
Results |
Appearance |
White or slightly yellow,crystalline powder |
White crystalline powder |
Solubility |
Freely soluble in water, slightly soluble in alcohol, very slightly soluble in dioxane, insoluble in chloroform and in ether. |
Confirms |
Inorganic phosphates |
≤1.0% |
0.2% |
Identification |
Reaction of sodium |
Confirms |
Reaction of phosphate |
Confirms |
|
TLC |
Confirms |
|
Specific Rotation |
+74°~+82° |
+80° |
Water |
≤10.0% |
4.9% |
Ethanol |
≤8.0% |
Not detected |
PH |
7.5~10.5 |
8.0 |
Related Substances |
Dexamethasone≤1.0% |
0.30% |
Individual impurities≤0.5% |
0.20% |
|
Total impurities≤1.0% |
0.5% |
|
Assay |
97.0%~102.0% |
98.4% |
Packaging and storage: Preserve in tight, light-resistant containers. |
||
Conclusion: The test product complies with the requirements of USP40. |
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