SPECIFICATION
| Appearance | White or almost white crystalline powder |
| Appearance of solution | Clear and not more intensely colored than Reference solution GY6 |
| Conductivity | ≤30μs•cm-1 |
| Transmittance | / |
| Assay (Titrimetric) | 98.0% – 102.0% (dried basis) |
| Specific Optical Rotation [α]20D | +14.5º- +16.5º |
| Loss on drying | ≤4.5% |
| Residue on Ignition | ≤0.2% |
| Heavy metals | ≤10ppm |
| Related substances: | |
| α-L-Aspartyl-L-Phenylalanine | ≤0.15% |
| L-Phenylalanine | ≤0.5% |
| 5-benzyl-3,6-dioxo-2-Piperazineacetic Acid | ≤1.5% |
| Other related substances | ≤1.5% |
MOLECULAR STRUCTURE：
Molecular Formula: C14H18N2O5
