Customization: | Available |
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Varieties: | Veterinary Drug |
Component: | Chemical Synthetic Drugs |
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Item | standard |
Appearance | A white or almost white, crystalline powder. Practically insoluble in water, freely soluble in anhydrous ethanol and in methylene- chloride. |
Identification | (1) IR: Conforms to the Azithromycin RS spectrum (2) HPLC: The retention time of azithromycin peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the Standard preparation, as obtained in the Assay. |
Specific rotation | -45°~-49°(Anhydrous substance 20mg/ml dehydrated alcohol) |
Crystallinity | Meets the requirements |
PH | 9.0~11.0 ( 0.1g /50ml methanol-water (1:1)) |
Water | 4.0%~5.0% |
Residue on Ignition | ≤0.3% |
Heavy metals | ≤0.0025% |
Residual solvents | (1) Methylene- Chloride (2) A-cetone |
Assay | C38H72N2O12 945~1030 μg /mg 945~1030 μg /mg |
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