CAS number: 83905-01-5
Molecular formula: C38H72N2O12
molecular weight: 748.98400
Chemical structure:
PRODUCT NAME | AZITHROMYCIN DIHYDRATE | |
Self life | 3 years | |
TEST | SPECIFICATION | Result |
Characteristics | White or almost white powder | white powder |
Identification | ||
A:Infrared Absorption spectrum | Meets the requirement | Meets the requirement |
B: The retention time | Corresponds to standard preparation | Meets the requirement |
Tests | ||
pH | 9.0~11.0 | 10.4 |
Specific rotation | -45℃~-49℃ | -47℃ |
Crystallinity | Meets the requirement | Meets the requirement |
Water | 4.0%~5.0% | 4.6% |
Residue on ignition | ≤0.3% | 0.04% |
Heavy metals | ≤0.0025% | <0.0025% |
Assay | 945μg/mg~1030μg/mg | 965μg/mg |
Conclusion: | The above product conforms to USP26 |