| Customization: | Available |
|---|---|
| Powder: | Yes |
| Customized: | Customized |
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| Product Name | Naproxen Sodium |
| CAS | 26159-34-2 |
| Appearance | White crystalline powder |
| MF | C14H13NaO3 |
| MW | 252.245 |
| Purity | 99% |
| Shelf Life | 2 Years |
Naproxen sodium (CAS NO.26159-34-2) is a non-steroidal anti-inflammatory drug commonly used for fever, inflammation the reduction of moderate to severe pain,and stiffness caused by conditions such as psoriatic arthritis, gout, ankylosing spondylitis,osteoarthritis, rheumatoid arthritis, and the treatment of primary dysmenorrhea.
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Item |
Specifications |
Results |
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|
Appearance |
White to almost white crystalline powder |
Almost white crystalline |
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Identification |
A. Infrared absorption |
The infrared absorption spectrum is concordant with the reference spectrum |
Conform |
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B. Ultraviolet Absorption |
Absorptivities at 272nm, calculated on the dried base, do not differ by more than 3% |
<1% |
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|
Specific rotation |
-17.0°to -15.3° |
-16.7° |
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|
Loss on drying |
≤1.0% |
0.2% |
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|
Heavy metals |
≤0.002% |
<0.002% |
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Free Naproxen |
≤1.0% |
0.1% |
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|
Related substances (HPLC) |
Impurity D(in-house) |
≤0.10% |
<0.01% |
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Impurity E(in-house, Impurity C in EP) |
≤0.10% |
<0.01% |
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Any other impurity |
≤0.10% |
<0.01% |
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Total impurities |
≤0.5% |
<0.01% |
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Residual Solvents |
T'oluene |
≤50ppm |
<1ppm |
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M'ethanol |
≤50ppm |
<12ppm |
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Ethanol |
≤100ppm |
<8ppm |
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[Assay] (On the dried basis) It contains C14H13NaO3 |
98.5% to 101.5% |
99.7% |
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Conclusion |
The results conforms with USP35 standards |
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