Items | Standard |
Appearance | White granular |
Assay(On dry basis) | 98.00-102.00% |
Specific Rotation | +14.50°~+16.50° |
Transmittance | ≥95.0% |
Loss on drying | ≤4.50% |
Residue on ignition | ≤0.20% |
Heavy metal (As pb) | ≤10ppm |
Lead | ≤1ppm |
PH | 4.50-6.00 |
Other related substances | ≤2.0% |
Residual Solvents | Meets the Requirements |
Organic volatile impurities | Meets the Requirements |
5-benzyl-3,6-dioxo-2-piperazineacetic acid | ≤1.5% |