Oxytetracycline Hcl
CAS number: 2058-46-0
Molecular formula: C22H25ClN2O9
Molecular weight: 496.8949
Chemical structure:
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Name of Product: |
Oxytetraycline Hcl |
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Shelf Life: |
4 years |
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Specification: |
BP2011 |
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Test Items |
Specification |
Results of Analysis |
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Appearance |
Yellow crystalline powder |
Complies |
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Solubility |
Freely soluble in water, sparingly soluble in ethanol, solutions in water become turbid on standing, owing to the precipitation of Oxytetracycline. |
Complies |
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Identification |
According to BP2011 |
Complies |
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Tests |
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pH |
2.3-2.9 |
2.5 |
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Absorbance |
270-290 |
271 |
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Specific optical rotation |
-188° to -200° |
-190° |
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Heavy metals |
Not more than 50 |
Complies |
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Light absorbing impurities |
Absorbance at 430nm shall not be more than 0.50 |
0.32 |
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Absorbance at 490nm shall not be more than 0.20 |
0.1 |
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Related substances |
content of impurity peak meets the requirements |
Complies |
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Sulphatd ash |
Not more than 0.5% |
0.09% |
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Water |
Not more than 2.0% |
1.2% |
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HPLC Assay |
95.0%-102.0% |
96.1% |
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