(+)-NAPROXEN
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Certification of Analysis
Product Name
(+)-NAPROXEN
CAS No
22204-53-1
Catalog No
SC-02561
Quantity
500g
Batch No
20130425
Product Date
2013.04.25
Date of analysis
2013.04.25
Items of analysis
Specification
Results
Appearance
A white or almost white crystalline powder
Almost white crystalline powder
Infrared Absorption
The infrared absorption spectrum is concordant with the reference spectrum
Conform
Ultraviolet Absorption
Absorptivities at 271nm, calculated on the dried base, do not differ by more than 3%
<1%
Specific rotation
+83.0°~ +89.5°
+88.0°
Loss on drying
≤0.5%
0.1%
Heavy metals
≤0.002%
<0.002%
Total impurities
≤1.0%
0.03%
Organic residual solvent
≤100ppm
<10ppm
Assay (On dry basis)
98.5% ~ 101.5%
99.4%
Remark
Declaration: For laboratory use by technically qualified individual only
Conclusion
It accords with the Enterprise Standard
Analyst: Jack Fu Check: Anne Zhang Date: 2013-04-25
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