Original
By certification 
【Characteristics】:A white crystalline powder
Assay：≥99.0%
Specifc rotation：-24。～-28。
Residual on ignition：≤0.25%
Heavy Metal：≤10PPM
Loss on drying：≤0.5%
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【Characteristics】:A white crystalline powder
Assay：≥99.0%
Specifc rotation：-24。～-28。
Residual on ignition：≤0.25%
Heavy Metal：≤10PPM
Loss on drying：≤0.5%
