Appearance
White crystals or crystalline powder
Identification(IR)
Infrared Absorption
Assay
98.5%-101.5%
Residue on ignition
≤ 0.4%
Chloride(Cl)
≤ 0.05%
Sulfate(SO4)
≤ 0.03%
Iron(Fe)
≤ 30ppm
Heavy metals(Pb)
≤ 15ppm
Specific rotation [α]D25
+14.9°~+17.3°
Related Compounds
Not more than 0.5% of any individual impurity is found;
Not more than 2.0% of total impurities is found
Loss on drying
≤ 0.2%
pH
5.5~7.0