Sodium hyaluronate pharma grade consists of highly purified and well characterized sodium hyaluronate with controlled endotoxin content (max. 2.5 EU/g). It is a linear copolymer composed of (Beta-1,4)-linked D-glucuronate and (Beta-1,3)-N-acetyl-Dglucosamine. Sodium hyaluronate is a non-sulfated glycosaminoglycan found abundantly in the extracellular matrix of skin, joints, eyes and most tissues and organs of all higher animals. This product forms highly viscous aqueous solutions due to its random coil structure and can trap approx. 1000 times its weight in water giving the molecule unique physiochemical properties as well as distinct biological functions.