Item Specifications Results Appearance Yellow or orange crystalline powder A yellow crystalline powder Identification Rationa256/a3652.80~3.00 2.86 Water Not more than 8.5% 7.9% Residue on ignition Not more than 0.3% 0.14% Organic volatile impurities In the last steps of the synthesis water is used as solvent so we could not detected organic solvent residue in our products. Assayanhydrous basis 95.0%~102.0% 97.82% Conclusion The results conforms with usp23 standards 25kg/drum and the drum is 45 x 55