USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $6.00-9.00 / Gram
USD $5.00-10.00 / Gram
USD $5.00-10.00 / Gram
USD $5.00-10.00 / Gram
high quality cefquinome sulfate 118443-89-3 |
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test items |
enterprise specification |
test results |
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appearance |
white to light yellow powder |
off-white powder |
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identification |
hplc |
the retention time of the principal peak in the chromatogram obtained with the test solution corresponds to that of the principal peak in the chromatogram obtained with reference solution. |
conform |
|
reaction of sulphates |
white precipitate is formed |
conform |
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appearance of solution |
clarity |
its opalescence is not more pronounced than that of reference suspension i. |
conform |
|
color |
no more intensely coloured than reference solution y10 or gy10 |
less intensely coloured than reference solution y7 |
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ph (0.1g/ml) |
1.6~2.6 |
1.7 |
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water content |
2.5~4.0% |
3.0% |
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specific optical rotation |
+16.5°~+22.5° |
+19.5° |
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heavy metal |
nmt 0.0020% |
nmt 0.0020% |
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residue of ignition |
not more than 0.3% |
0.21% |
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related substances |
cefotaxime |
nmt 0.50% |
0.011% |
|
5,6,7,8-tetrahydroquinoline |
nmt 0.50% |
0.06% |
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any other individual impurity |
nmt 0.20% |
0.17% |
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total impurities |
nmt 2.0% |
0.748% |
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residue solvents |
dichloromethane |
nmt 0.0600% |
not detected |
|
toluene |
nmt 0.0890% |
0.0000252% |
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ethanol |
nmt 0.5000% |
0.001252% |
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acetone |
nmt 0.5000% |
0.02027% |
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benzene |
nmt 0.0002% |
0.00001% |
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assay(cefquinome) |
80.0~85.0% |
83.2% |
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bacterial endotoxin |
less than 0.10eu/mg(cefquinome) |
conform |
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sterility |
no growth of micro-organisms should occur after 14 days of incubation |
conform |
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particle size |
d10:nmt 1.0μm |
0.94μm |
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d50:nmt 4.0μm |
2.4μm |
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d90:nmt 7.0μm |
5.6μm |
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storage condition: protected from light and keep in an airtight container at 2~10°c |