Febuxostat CAS NO.144060-53-7

Appearance :White to light yellow crystalline powder Identification: Absorptivities at the wavelength of maximumabsorbance at 315±…

 Appearance :White to light yellow crystalline powder 

Identification:

Absorptivities at the wavelength of maximum absorbance at 315±2nm and 215±2nm.

The retention time of the major peak in the

chromatogram of the related substances

preparation coresponds to that in the

chromatogram of the standard preparation.

Chloride :≤ 0.04% 

Loss on drying: ≤ 1.0% 

Residue on ignition: ≤ 0.1%

Heavy metals: ≤ 0.002% 

Impurity :≤ 0.1% 

Total impurities :≤ 0.5% 

Residual solvents:

Methanol: ≤ 0.3%

Ethanol: ≤ 0.5%

Formic acid: ≤ 0.5%

DMF: ≤ 0.088%

Assay :≥ 98.5%