Appearance: White crystalline powder
Solubility: Soluble in methanol and ethanol
Identification: The reaction is positive  
Color and clarity: Clear and colorless
Loss on drying: Not more than 6.0%
Heavy metals: Not more than 20ppm
Arsenic: Not more than 2ppm
Reside: Not more than 1.0%
Hydrous Potency: 771u/mg  
Anhydrous Potency: Not less than 750u/mg
pH: 6.0 to 7.0