Medical use Eyes-drop grade Sodium hyaluronate Hyaluronic acid

Sodium Hyaluronate (Injection Grade) Test Items Specifications Appearance White powder pH 6.0~7.5 Assay (on dry basis) 95.0%~105.0% Molecular weight ≥ 1.00×106 Intrinsic viscosity ≥ 30.0dL/g Nitrogen 3.0~4.0% Nucleic acids A260nm≤ 0.5 Appearance of solution A600nm≤ 0.01 Purity test: - Chloride ≤ 0.5% - Heavy metals ≤ 20ppm - Iron ≤ 80ppm -Arsenic ≤ 2ppm - Protein ≤ 0.1% - Lead ≤ 3ppm Loss on drying ≤ 10.0% Residue on ignition 15.0~20.0% Microbiological purity: - Total bacterial count < 100CFU/g - Yeasts & mold < 100CFU/g - Bacterial endotoxins ≤ 0.5IU/mg