Shandong focuschem biotech co. Ltd offers a wide range product which includes chondroitin sulfate extracted from bovine cartilage. It is a sulfated glycosaminoglycan composed of a chain of alternating sugars (n-acetylgalactosamine and glucuronic acid). It is one of the main components of cartilage and mucosa layers, forming the connective tissue that holds muscles, nerves and blood vessels together. It is used as a dietary supplement to support cartilaginous tissues and combat various forms of arthritis in humans and animals. It is white to off-white powder. Package: 25kg/drum. Contact us for more information.