USD $5.00-10.00 / Gram
USD $10.00-100.00 / Kilogram
USD $10.00-100.00 / Kilogram
USD $10.00-100.00 / Kilogram
USD $5.00-10.00 / Gram
USD $10.00-100.00 / Kilogram
USD $10.00-100.00 / Kilogram
USD $5.00-10.00 / Gram
USD $6.00-9.00 / Gram
tests |
specification |
results |
appearance |
white crystalline powder |
conform |
identification |
ir:conforms to the spectrum of azithromycin rs
hplc: the retention time of azithromycin peak in the chromatogram of the assay preparation corresponds to t hat in the chromatogram of the standard preparation, as obtained in the assay. |
conform
conform |
specific rotation |
-45°~-49° |
-47° |
crystallinity |
meets the requirements |
conform |
ph |
9.0~11.0(2mg/ml methanol-water 1:1) |
10.1 |
water |
4.0%~5.0% |
4.45% |
related substance |
n-demethylazithromycin ≤0.7% desosmnlaylazithromycin≤0.3% any other impurity≤1.0% total≤3.0% |
0.5% not found 0.6% 2.3% |
residue on ignition |
≤0.3% |
0.06% |
heavy metals |
≤25ppm |
<25ppm |
assay |
≥98.5% |
99.0% |