Customization: | Available |
---|---|
Powder: | Yes |
Customized: | Non-Customized |
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Packing and Storage
1kg with double plastic container inside/Aluminum foil bag ;
25kg with double plastic container inside/Fiber drum outside.Or as your request.
Shipped in 3 days after payment.
1.Stored in a cool and dry well-closed container and in ventilated area.
2.kept away from moisture and strong light or high temperature.
3.Two years under well storage situation and stored away from direct sun light.
Naproxen can be used as anti-inflammatory, antipyretic, analgesic, and PG synthase inhibitor. Naproxen has significant effect on rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, gout, motor systems (such as joints, muscles and tendons) chronic degenerative diseases, and mild, moderate pain such as dysmenorrhea.
tem |
Specifications |
Results |
|
Appearance |
White to almost white crystalline powder |
Almost white crystalline |
|
Identification |
A. Infrared absorption |
The infrared absorption spectrum is concordant with the reference spectrum |
Conform |
B. Ultraviolet Absorption |
Absorptivities at 272nm, calculated on the dried base, do not differ by more than 3% |
<1% |
|
Specific rotation |
-17.0°to -15.3° |
-16.7° |
|
Loss on drying |
≤1.0% |
0.2% |
|
Heavy metals |
≤0.002% |
<0.002% |
|
Free Naproxen |
≤1.0% |
0.1% |
|
Related substances (HPLC) |
Impurity D(in-house) |
≤0.10% |
<0.01% |
Impurity E(in-house, Impurity C in EP) |
≤0.10% |
<0.01% |
|
Any other impurity |
≤0.10% |
<0.01% |
|
Total impurities |
≤0.5% |
<0.01% |
|
Residual Solvents |
Toluene |
≤50ppm |
<1ppm |
Methanol |
≤50ppm |
<12ppm |
|
Ethanol |
≤100ppm |
<8ppm |
|
[Assay] (On the dried basis) It contains C14H13NaO3 |
98.5% to 101.5% |
99.7% |
|
Conclusion |
The results conforms with USP35 standards |