Chitin, also known as chitin, chitin, and chitin. It is extracted from chitin-containing substances such as shrimp shells and crab shells.
It is a white translucent solid. Insoluble in water, ethanol and ether. It is a nitrogen-containing polysaccharide composed of N-acetyl α-amino-D-glucosamine linked by β(1→4) glycosidic bonds.
Soluble in concentrated mineral acids and anhydrous formic acid. It is hydrolyzed in concentrated acid or alkali to form α-glucosamine. Chitin is chemically treated to remove the acetyl group and becomes chitosan.
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