Items
USP Standards
Appearance
White or almost white crystalline powder
Identification
IR
TLC
HPLC
Solubility
Soluble in acetone, ethanol, ethyl acetate and in methanol, very slightly soluble in water
Water(K.F)
0.5%max
Chloride
0.05%max
Residue on ignition
0.2%max
Heavy metals
0.005%max
Related substances
Impurity A: 1.0%max
Impurity B: 1.0%max
Impurity C: 1.0%max
Assay
97.0%~103.0%