Product information:
| | | |
| Identification | A.H-NMR:Comply with the structure | |
| B.LC-MS:Comply with the structure | |
| C.The IR spectrum of sample should be identical with that of reference standard. | |
| D.HPLC-ESI-MS
The retention time of the major peak in the chromatogram of the Assay preparation corresponds to that in the chromatogram of the
Standard preparation, as obtained in the Assay. | |
| Heavy metals | ≤10 ppm | |
| Water | ≤1.0% | |
| Sulphated ash | ≤0.5% determined on 1.0 g. | |
| Residue on ignition | ≤0.1% | |
| | Unspecified impurities: for each impurity | ≤0.10% | |
| Total Impurities | ≤0.5% | |
| Purity | ≥99.0% | |
| Assay | 99.0%~101.0% (anhydrous substance). | |
| Storage | Preserve in well-closed, light-resistant and airtight containers. | |
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