CM-dextran is widely used in biomedical research and pharmaceutical applications due to its biocompatibility and solubility. It serves as a drug delivery carrier, enabling targeted release of therapeutic agents in specific tissues or cells. In tissue engineering, it acts as a scaffold material to support cell growth and regeneration. CM-dextran is also utilized in diagnostic assays, such as fluorescence labeling, to track biological processes. Additionally, it is employed in chromatography as a stationary phase for separating biomolecules based on size or charge. Its ability to modify surface properties makes it valuable in coating medical devices to improve biocompatibility and reduce immune responses. It is further used in studies of cell migration, adhesion, and molecular absorption in biological systems like the gastrointestinal tract and kidneys.