Distinguish

The infrared absorption atlas should be consistent with the comparison atlas.

Specific rotation [ a ] D20

+38.9°~ +41.8°

Transmittance

≥98.0%

Chloride ( Cl )

≤0.02%

Ammonium ( NH4 )

≤0.02%

Sulfate ( SO4 )

≤0.02%

Heavy metals ( Pb )

≤0.001%

Arsenic ( As2O3 )

≤0.0001%

Other amino acids

≤0.5%

Loss on drying

≤0.2%

Residue on ignition

≤0.1%

Assay

≥98.5%

Endotoxin

20EU/g

PH

5.5 ~ 6.5