... , cartilage, blood vessel, heart, eye and brain. Reduction of hyaluronate acid content in these tissues may cause arthritis, arteriosclerosis, anisosphygmia, eye aging ... show the identification reaction of sodium salt.Content of Glucuronic Acid:≥45%PH Value:6.0-7.5 (internal control 6.3-7 ... .3)Loss on Drying:≤8%Content of Protein:≤0.2 ...