Item

Standard

Analysis data

Appearance

White crystalline powder

Conforms

Specific rotation[α]20/D
(C=8 6N HCL )

+16.5 to ~18.5 Degree

17.3°

Transmittance
(0.5 in 10ml of H2O)

Not less than 95.0%

98.1%

Chloride (Cl)

Not more than 0.020%

<0.02%

Ammonium (NH4)

Not more than 0.02%

<0.02%

Sulfate (SO4)

Not more than 0.020%

<0.02%

Iron (Fe)

Not more than 10ppm

<10ppm

Heavy metal(Pb)

Not more than 10ppm

<10ppm

Other Amino Acids

Chromatographically
Not detectable

Conforms

Loss on drying

Not more than 2.0%

0.9%

Residue on ignition(sulfated)

Not more than 0.10%

0.08%

Assay

98.5%~101.5%

99.2%

Remark

Easy moisture-absorbed; store in dry、dark、cool place.

Inspector

陈舒娟 罗健

Manager

伍万兵

Conclusion

The product conforms to the standard.