Chitosan Synonyms: Deacetylated chitin, Poly(D-glucosamine), Chitosan from crab shells    CAS No.: 9012-76-4   Chitosan is a white to slightly yellow powder produced by deacetylation of chitin, which is obtained from crab or shrimp shells. Chitosan is a polysaccharide composed of β-(1,4)-linked D-glucosamine and N-acetyl-D-glucomasine. Jiagen Biotechnologies supplies quality Chitosan of various specifications. To place an order or for more information, please contact us at sales@jiagen.com.