Chitin - Wikipedia, the free encyclopedia ge in Iran, see Chitin, Iran.
Structure of the chitin molecule, showing two of the N-acetylglucosamine units that repeat to form long chains in β-1,4 linkage.
A close-up of the wing of a sap beetle; the wing is composed of chitin.
<span>Chitin (C8H13O5N)n (/ˈkaɪtɨn/ KY-tin) is a long-chain polymer of a N-acetylglucosamine, a derivative of glucose, and is found in many places throughout the natural world. It is the main component of the cell walls of fungi, the exoskeletons of arthropods such as crustaceans (e.g., crabs, lobsters and shrimps) and insects, the radulae of molluscs, and th