Diethylaminoethyl cellulose is a water-soluble polymer used in various applications. It is also known as DEAE-cellulose, diethylaminoethyl ether of cellulose, and diethylaminoethyl cellulose acetate. Some synonyms include N,N-Diethylaminoethyl cellulose, Cellulose DEAE, and DEAE Sephadex. This compound is used in chromatography as a separation medium for proteins, nucleic acids, and enzymes. It is also used in drug delivery systems, where DEAE-cellulose beads are coated with active compounds and injected into the patient's bloodstream. Its adhesive properties have made it useful in wall-paper paste, and it is also used in the production of tubing, cellophane, and photographic film.