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Specific rotation[a]D20° | +8.3°~+9.5° |
State of solution | ≥95.0% |
Heavy metals(Pb) | ≤10PPm |
Residue on ignition | ≤0.1% |
Iron(Fe) | ≤10PPm |
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 |
L-Cysteine Base