Chondroitin sulphate is the most abundant glycosaminoglycan in mammalian tissues and occurs both in skeletal and softconnective tissue. The disaccharide repeat unit consists of N-acetyl galactosamine sulphate linked β 1-4 to glucuronic acid.

Heparin is a glycosaminoglycan which occurs in many mammalian tissues and has anticoagulant and thrombolytic properties. The chemical structure is composed mainly of two disaccharide repeating units A & B. A is L-iduronic acid 2-suplhate linked α-(1-4) to 2-deoxy-2-sulfamido-D-galactose 6-sulphate while B is D-glucuronic acid β-(1-4) linked to 2-deoxy-2-sulfamido-D-glucose 6-sulphate.

Hyaluronic acid is a glycosaminoglycan found in many organs where it functions as a joint lubricant and shock absorber. It is obtained principally from synovial fluid, vitreous humor of the eye, umbilical tissue and cocks comb. The chemical structure of hyaluronic is a disaccharide repeat of β (1-3) glucuronic acid β (1-4) N-acetyl glucosamine.

[61932-66-9]

Obtained from porcine mucosal heparin (pharmaceutical grade) by the method of Inoue and Nagasawa (Carbohydrate Research 46 (1976) 87-95). N-Sulphate less than 0.05%

Obtained by N-acetylation of porcine mucosal heparin (pharmaceutical grade) by the method of Danishefsky and Steiner (Biochem., Biophys. Acta101 (1965) 37-45) 98% N-Acetylation as percentage of original N-sulphate.

Obtained from porcine mucosal heparin (pharmaceutical grade) by the method of. Moffat, et al (European Journal of Biochemistry197 (1991) 449-459). Totally resistant to heparinase I, almost totally resistant to heparinases II and III.

[133686-69-8]

Obtained from N-acetyl-heparin by the method of Nagasawa et al. (Carbohydrate Research 58 (1977) 47-55. Totally resistant to heparinase I, substrate for heparinases II and III.