Item

Standard

Analysis data

Appearance

White crystals or crystalline powder

Conforms 

Specific rotation[α]20/D
(C=4 in 6N HCl)

+14.9 to +17.3°

+15.2°

Chloride (Cl)

Not more than 0.05%

<0.05%

Heavy metals

Not more than 15ppm

<15ppm

Sulfate (SO4)

Not more than 0.030%

<0.03%

Iron (Fe)

Not more than 30ppm

<30ppm

Loss on drying

Not more than 0.20%

0.08%

Residue on ignition(sulfated)

Not more than 0.20%

0.07%

Assay

98.5-101.5%

99.4%

pH

5.5 to 7.0

6.0

Conclusion

The product is according with standard USP32