Heparin is a polymer classified as a mucopolysaccharide or a glycosoaminoglycan. It is biosynthesized and stored in mast cells of various mammalian tissues, particularly liver, lung and mucosa. It is made up of repeated disaccharide units consisting of 1,4-linked L-iduronic acid and D-glucosamine.…

Limonin is a natural compound found in grapefruit and other citrus seeds. Limonin is a triterpenoid aglycone that is a bitter principle of citrus fruits. It has been shown to inhibit chemically induced carcinogenesis and demonstrates anti feedant properties. Limonin may be used in assays to…

Insulin is the primary polypeptide hormone responsible for controlling the cellular uptake, utilization and storage of glucose, amino acids and fatty acids while inhibiting the breakdown of glycogen, protein and fat. It is produced by pancreatic beta cells. Methods for immobilizing insulin on…

Isodesmosine is prepared according to the method of Starcher, et al. from hdrolyzed bovine neck ligament by solvent extraction and chromatography on Dowex 50.

Forskolin is the major diterpene isolated from the Indian plant Coleus forskohlii. At low doses, forskolin is a positive inotropic agent in dogs, cats, spontaneously hypertensive and normal rats and in an isolated guinea pig heart (Langendorf) preparation. At higher doses, forskolin is a…