Chondroitin sulfate (CS) is a class of glycosaminoglycans that are covalently linked to proteins. Chondroitin sulfate is widely distributed in the extracellular matrix and cell surface of animal tissues. The sugar chain is composed of alternating glucuronic acid and N-acetylgalactosamine disaccharide units. The linker region is attached to a serine residue of the core protein. https://www.cd-bioparticles.ne....t/fluorescent-chondr