CHONDROITIN SULPHATE
It is a linear polymer of sulphated N-acetylgalactosamine alternating with glucuronic or iduronic acid.
The complex also occurs in skin, tendon and cartilage. It regulates the concentration of cations outside the cells.
Chondroitin sulphate is also complexed with hyaluronic acid along with keratosulphate in forming proteoglycan.