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Definition of Chondroitin sulfate
Medically reviewed by Min Clinic Staff | Updated: January 2026
Chondroitin sulfate: A glycosaminoglycan (formerly called a mucopolysaccharide) found in cartilage, bone, blood vessels and connective tissues. There are two forms: chondroitin sulfate A and chondroitin sulfate C. One or both types accumulate abnormally in several of the mucopolysaccharidosis disorders. Chondroitin sulfate B is now called dermatan sulfate.