Used primarily as a chelating agent in analytical chemistry, it forms stable complexes with metal ions, particularly iron, enabling the detection and quantification of metals in various samples. It is widely employed in spectrophotometric methods to measure iron concentrations in biological and environmental studies. Additionally, it serves as a reagent in redox titration for determining the concentration of reducing agents. In biochemistry, it is utilized to study enzyme inhibition and metal ion interactions in proteins. Its ability to bind metals also makes it useful in corrosion inhibition studies for protecting metal surfaces.