
| Inspect Item | Quality Standard |
| Description | White crystals or crystalline powder |
| Specific Rotation | 74.0° ~ -77.0° |
| Identification | Conforms |
| ph | 5.0 ~ 6.5 |
| luminousness | Not less than 95.0% |
| Chloride(CL) | Not moe than 0.020% |
| Sulfate(SO4) | Not more than 0.020% |
| Ammonium(NH4) | Not more than 0.020% |
| Heavy Metals(Pb) | Not more than 0.001% |
| Iron(Fe) | Not more than 0.001% |
| Arsenic(As2O3) | Not more than 0.0001% |
| Other Amino Acids | Not detectable |
| Loss On Drying | Not more than 0.20% |
| Residue On Ignition | Not more than 0.10% |
| Assay | 98.5 ~ 101.0% |