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.
≤0.5% determined on 1.0 g.
Unspecified impurities: for each impurity ≤0.10%
99.0%~101.0% (anhydrous substance).
Preserve in well-closed, light-resistant and airtight containers.
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