| Customization: | Available |
|---|---|
| CAS No.: | 73-31-4 |
| Formula: | C13h16n2o2 |
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| Items | Requirements | Result |
| Appearance | A white to off-white crystalline powder. Slightly soluble in water. | Conform |
| Identification | IR | Conform |
| UV | Conform | |
| HPLC | Conform | |
| Chloride and sulfate | 0.02%MAX | <0.02% |
| Loss on drying | 1.0%MAX | 0.06% |
| Residue on ignition | 0.1%MAX | 0.05% |
| Heavy metals | Pb: 1ppmMAX | <1ppm |
| As: 1.5ppmMax | <1.5ppm | |
| Hg: 1.5ppmMax | <1.5ppm | |
| Cd: 0.5ppmMax | <0.5ppm | |
| Impurities | Individual impurity: 0.1%Max | 0.029% |
| Total impurity: 1.0%Max | 0.12% | |
| Assay(on the dried basis) | 98.5~101.5% | 99.81% |
| Conclusion | Comply with the requirements of USP42. | |
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