Chondroitin sulfate sodium salt

Appearance: White or yellowish powder Assay: 91.0-105.0% Identification：IR & Significant differential response to sodium PH：5.5-7.5 Clarity and the color of the solution(420nm wavelength)：0.35 max Specific rotation(30mg/ml)：-20°～-30° Chloride：0.5% max Sulfates：0.24% max Heavy metals: 0.002% max Loss on drying：10.0%max Residue on ignition: 20.0%-30.0% Organic solvent residue: 0.5% max Impurities in electrophoresis: 2.0% max Limit of protein (dry): 6.0% max Total bacterial count: 1000 cfu/g max Mold & Yeast: 100 cfu/g max Salmonella: Negative Escherichia coil: Negative Package: 25kg/fibre drum