Inspection Item Specification Results Appearance White powder conforms Test Method High Pressure Liquid Chromatographyconforms Melting Point 300°C-303°C 301.5°C-302.6°C Loss on drying ≤0.5% 0.25% Heavy metals(Pb) ≤20ppm 8ppm Restdue on ignition ≤0.1% 0.066% Relevant Impurity ≤1.0% 0.15% Assay??n dried basis??≥98.5% 99.6% Conclusion : THE PRODUCT CONFORM TO ENTERPRISE STANDARD