View Original Size
Description white crystals or white crystalline powder
crystalline powder
Identification meets the requirements meets the requirements
Specific rotation +22.4°～+24.7° +23.3°
pH 5.6～6.1 5.8
Loss on drying not more than 0.3% 0.10%
Residue on ignition not more than 0.4% 0.05%
Chloride not more than 0.05% less than 0.05%
Sulfate not more than 0.03% less than 0.03%
Iron not more than 0.003% less than 0.003%
Heavy metals not more than 0.0015% less than 0.0015%
Organic volatile meet the requirements meet the requirements
impurities
Assay 98.5%～101.5% 99.6%
【Conclusion】:This product accords with the standard of USP32
