Specifications Ibuprofen 15687-27-1 CAS:15687-27-1 assay:>99% appearance:white powder Ibuprofen 15687-27-1 CAS:15687-27-1 assay:>99% appearance:white powder Test items Specifications Results Apperance White crystalline powder Conforms Solubility Practically insoluble in water,very soluble in alcohol,in methanol ,in acetone,and in chloroform;slightly soluble in ethyl acetate. Conforms Identification IR UV HPLC sample IR spectrum corresponds to that of the standard sample UC spectrum does not differ form that of the standard by more than 3.0% retention time corresponds to that of the standard Conforms Conforms Conforms Residual on ignition Not more than 0.5% 0.01% Chromatographic purity 2-[3-(2methylpropyl)phenyl]propanoic acid:not more than 0.15% 2-(4-methylphenyl)propanoic acid:not more than 0.15% 2-(4-ethylphenyl)propanoic acid:not more than 0.15% 2-(4-propylphenyl)propanoic acid:not more than 0.15% 2-(4-butylphenyl)propanoic acid:not more than 0.1% Any unknown impurity:not more than 0.05% Total impurities:not more than 0.6% 0.06% Not detected 0.02% 0.01% Not detected 0.02% 0.12% 4-isobutylacetophenone Not more than 0.1% Not detected Water content Not more that 1.0% 0.12% Heavy Metals Not more than 0.002% <0.002% Residual solvents(petroleum ether) Not more than 250ppm 55ppm Assay(dry basis) 97.0-103.0% 99.50% Bulk density 0.20-0.50g/ml 0.29g/ml Tapped density 0.40-0.70g/ml 0.50g/ml Median particle size 30-60um 37.9um Conclusion Comply with USP32
