Carboxymethyl chitosan is widely used in the biomedical field due to its biocompatibility and biodegradability. It is employed as a wound dressing material, promoting healing by maintaining a moist environment and providing antimicrobial properties. In drug delivery systems, it serves as a carrier for controlled release of pharmaceuticals, enhancing therapeutic efficacy. Additionally, it is utilized in tissue engineering to support cell growth and scaffold formation. The chemical is also applied in water treatment processes, where it acts as a flocculant to remove heavy metals and organic pollutants. In the cosmetic industry, it is incorporated into skincare products for its moisturizing and film-forming abilities. Its versatility extends to agriculture, where it is used as a seed coating agent to improve germination and plant growth.