Specification
Specific rotation[a]D20°
+5.6~8.9°
State of solution
Clear colorless
Heavy metals(Pb)
≤10PPm
Residue on ignition
≤0.1%
Loss on drying
≤1 %
Other amino acids
Chromatographically not detectable
Arsenic(As2O3)
≤1PPm
Assay
98.0~102.0 %
PH
1.5~2.0
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