Item

Limit

Test result

Appearance

White or colorless crystal

Passed

Assay

99.0%

99.1%

Chloride (Cl)

Not more than 1.0%

Not more than 1.0%

Ammonium (NH4)

Not more than0.02%

Not more than 0.02%

Sulfate (SO4)

Not more than 0.026%

Not more than 0.026%

Iron (Fe)

Not more than 30PPM

Not more than 30PPM

Heavy Metals (Pb)

Not more than 10PPM

Not more than 10 PPM

Not more than 1PPM

Not more than 1 PPM

Other Amino Acids

Conforms

Conforms

Loss on Drying

Not more than 0.50%

0.36%

Specific Rotation (a)20

+24.7 ～+25.2

24.8

PH

6.7～7.2

7.0