Appearance White fine crystals
Assay 98.0 to 101.0%
Specific Rotation [20/D] °～°
Melting point
Chloride (Cl) Not more than 0.10%
Heavy Metals (Pb) Not more than 10 PPM
Loss on Drying Not more than 0.20%
Residue on Ignition (Sulfate) Not more than 0.20%