CAS number： 376592-93-7
Molecular formula： C13H11NO3
molecular weight： 229.231
Chemical structure：
| Category | Pharmaceutical Raw Materials, Fine Chemicals, Bulk drug |
| Standard | Medical standard |
| Shelf life | 2 years |
| Storage | should be stored in a well-closed container at low temperature, keep away from moisture, heat and light. |
| Test Item | Standard: USP |
Identification | IR spectrum similar to that of RS |
HPLC retention time similar to that of RS | |
Related substance | Total impurities: NMT0.3% |
Single impurity: NMT0.1% | |
Heavy metals | NMT 10ppm |
Loss on drying | NMT0.5% |
Residue on ignition | NMT0.1% |
Assay | 98.5%-101.0% |
