Chitosan Synonyms: Poly(beta-(1,4)-2-amino-2-deoxy-D-glucose); Poly(beta-(1,4)-D-glucosamine) Molecular Formula: (C6H11NO4)n CAS Registry Number: 9012-76-4 Application: Cosmetics grade chitosan has good moisture, moisturizing, conditioning, bacteriostasis function ; it is applicable to cream, shower gel, cleansing cream, mousse, high-grade cream, lotion, gel cosmetics .