Used as a building block in the synthesis of biodegradable polymers and chelating agents. Its bifunctional structure allows it to link with other molecules to form polyamides and polyesters that show potential in environmentally friendly plastic applications. Also employed in pharmaceuticals for designing prodrugs and drug delivery systems due to its ability to enhance solubility and stability of active compounds. Shows promise in metal ion sequestration, useful in wastewater treatment and formulation of detergents where control of metal ions is required.