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(+)-NAPROXEN

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