Items

Standard

Analysis data

Appearance

White to off-white powder

conforms

Specific Rotation [20/D]
(C=4 in CH3OH)

+22º to +26º

+24.43º

Melting point

187-190℃

187.5℃

Heavy Metals (Pb)

Not more than 20 PPM

<20ppm

Arsenic (As2O3)

Not more than 2 PPM

<2ppm

Loss on Drying

Not more than 0.50%

0.12%

Residue on Ignition

Not more than 0.2%

0.09%

Assay

Not less than 98.5%

99.0%

Inspector:

   陈君   王明芳

Manager:

 彭秀明

Conclusion

The product is according with standard.