| ITEM | STANDARD |
| Specific rotation[a]D20° | +5.6°~+8.9° |
| State of solution | >=98.0% |
| Identification | Infrared absorption spectrum |
| Chloride(Cl) | 22.30～22.6% |
| Ammonium(NH4) | =<0.02% |
| Sulfate(SO4) | =<0.020% |
| Iron(Fe) | =<10 PPM |
| Heavy metals(Pb) | =<10 PPM |
| Arsenic(As2O3) | =<1PPM |
| Other amino acids | Chromatographically not detectable |
| Loss on drying | =< 1.0 |
| Residue on ignition | =<0.10% |
| Assay | 98.0-102.0% |
| PH | 1.5～2.0 |
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