Appearance White crystals or crystalline powder
Assay 98.5%~101.5%
Specific rotation[α]D20 +20.4°~+21.4°
Iron(Fe) 30ppm max
Chloride(Cl) 19.0~19.6%
Sulfate(SO4) 0.03% max
Heay metals, as Pb 15ppm max
Loss on drying 0.40% max
Residue on ignition 0.10% max
Chromatographic purity Any individual impurity 0.5% max
Total impurities 2.0% max
Organic volatile impurities Meets the requirements
PH 5.5-7.0
