B.HPLC-Retention time of the sample conforms to that of the reference standard
C.Test for sulfate-Positive
Loss on drying
≤0.5%
Residue on ignition
≤0.1%
Related compounds
Compound A ≤0.2%
First enantiomer compound B ≤0.3%
compound C ≤1.0%
Unidentified impurity ≤0.1%
Total impurities ≤1.5%
Assay
97.0~101.5%
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