Azithromycin
Longcom Enterprise Limited [China] 
Azithromycin is used to treat or prevent certain bacterial infections, most often those causing middle ear infections, tonsilli
Item: | Spec. | 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 |
Test | ||
PH | 9.0~11.0 | 10.5 |
Specific rotation | -450~-490 | -470 |
Crystallinity | Meets the requirement | Meets the requirement |
Water | 4.0%~5.0% | 4.4% |
Residue on ignition | ≤0.3% | 0.1% |
Heavy metals | ≤0.0025% | 0.0025% |
Assay | 945ug/mg~103ug/mg | 972ug/mg |
Azithromycin
