Item | Standard | Standard | Test Results | |||
A.H-NMR:Comply with the structure | Complies | |||||
B.LC-MS:Comply with the structure | Complies | |||||
C.The IR spectrum of sample should be identical with that of reference standard. | Complies | |||||
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. | Complies | |||||
Heavy metals | ≤10 ppm | <10ppm | ||||
Water | ≤1.0% | 0.1% | ||||
Sulphated ash | ≤0.5% determined on 1.0 g. | 0.009% | ||||
Residue on ignition | ≤0.1% | 0.03% | ||||
Related Substances | Unspecified impurities: for each impurity | ≤0.10% | <0.10% | |||
Total Impurities | ≤0.5% | 0.18% | ||||
Purity | ≥99.0% | 99.7% | ||||
Assay | 99.0%~101.0% (anhydrous substance). | 99.8% | ||||
Storage | Preserve in well-closed, light-resistant and airtight containers. | Complies |