C3H7NO2S
Specification
Specific rotation[a]D20°
+8.3°~+9.5°
State of solution
≥95.0%
Heavy metals(Pb)
≤10PPm
Residue on ignition
≤0.1%
Iron(Fe)
Loss on drying
≤0.5%
Other amino acids
Conforms
Arsenic(As2O3)
≤1PPm
Chloride(CI)
≤0.04%
Ammonium(NH4)
≤0.02%
Sulfate(SO4)
≤0.03%
Assay
98.0~101.0%
PH
4.5~5.5
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