Model Number: K-M-C7-1 Brand Name: Kangmei Key Specifications/Special Features: Type: CartilageSource: CattleColor: WhiteIngredients: ProteinPlace of Origin: Shandong, China (Mainland) NameChondroitin Sulphate Powder Appearance White to Off-white Free Flowing Powder Clarity and Color of Solution 0.35 Max at 420nm Source Dioscorea opposita Thunb. Specific Rotation -20.0° — -30.0° CPC 90% Min PH 5.5-7.5 Content of Protein ≤6% Chloride ≤0.5% Sulfate ≤0.24% Loss On Drying ≤10.0% Ignited residue 20%-30%