Appearance White powder
Identification Positive
IR absorption
Assay 99-100.5%
Melting point 200-203℃
Clarity Clear
Color of solution GY4 max
Acidity 0.5ml(USP) max
0.1ml(BP) max
Loss on drying 0.5% max
Chloride 0.014% max
Sulfate 0.04% max
Heay metals 0.002% max
Related substances 0.5% max(SN)
Ordinary impurities 2.0% max
Residue on ignition 0.1% max
