Items of analysis

Specification

Results

Appearance

White powder

Conform

Identification

A:Infrared Absorption 197k

B:A solution (1 in 20)responds to the tests for Calcium

Concordant with the reference spectrum

Conform to USP 30

Conform

Conform

Specific optical rotation

+25.0°-+27.5°

+26.35°

Alkalinity

No pink color is produced within 5 seconds

Conform

Loss on drying

Not more than 5.0%

2.92%

Heavy metals

Not more than 0.002%

Conform

Ordinary impurities

Not more than 1.0%

Conform

Organic volatile impurities

Meet the requirements

Conform

Nitrogen content

5.7%-6.0%

5.73%

Content of calcium

8.2-8.6%

8.43%

Conclusion

Conform to USP30