Complaint
| Item | Standard |
| Appearance | White crystalline granular |
| Assay(On dry basis) | 98.0%~102.0% |
| Specific Rotation(α)20D | +14.5°~+16.5° |
| Transmittance | 95%minimum |
| Loss on Drying | 4.5%maximum |
| Residue on Ignition | 0.2%maximum |
| Heavy Metals(as Pb) | <10ppm |
| PH data | 4.5~6.0 |
| Lead | <1ppm |
| Arsenin | <3ppm |
| Other Related Substances | <2.0% |
| 5-benzyl-3.6-dioxo-2- Piperazineacetic Acid(DKP) | <1.5% |
