Item Standard Test Results Identification 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 Crystallinity meets the requirements. Complies Loss on drying ≤2.0% 0.19% Heavy metals ≤10 ppm <10ppm Water ≤1.0% 0.1% Sulphated ash ≤0.5%, determined on 1.0 g. 0.009% Related substances Unspecified impurities: for each impurity ≤0.10% <0.10% Total Impurity ≤0.5% 0.18% Purity ≥99.0% 99.7% Assay 99.0%~101.0% (anhydrous substance). 99.8% Microbiological Analysis Total plate count ≤1000cfu/g Complies Yeast and Moulds ≤100cfu/g Complies E. Coli. Absent Negative Salmonella Absent Negative S.aureus Absent Negative Storage Preserve in well-closed, light-resistant and airtight containers. Compli