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| Appearance | White Crystals or Crystalline Powder |
| Specification Rotation | +8.3º~+9.5º |
| State of Solution | ≥95.0% |
| Chloride(Cl) | ≤ 0.04% |
| Ammonium | ≤ 0.02% |
| Sulfate(SO4) | ≤ 0.030% |
| Iron(Fe) | ≤10ppm |
| Arsenic(As2o3) | ≤1ppm |
| Other Amino Acids | Conforms |
| Heavy Mental(Pb) | ≤10ppm |
| Loss on Drying | ≤ 0.50% |
| Residue on Ignition | ≤ 0.10% |
| Assay | 98.0%~101.0% |
| PH | 4.5~5.5 |
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