Used as a chelating agent in analytical chemistry to form stable complexes with metal ions, particularly iron, enabling precise quantification in spectrophotometric methods. It serves as a key reagent in redox titrations and colorimetric assays for detecting trace metal concentrations. In biochemistry, it is employed to study enzyme inhibition and metal ion interactions in biological systems. Additionally, it finds application in corrosion inhibition studies, where it helps protect metal surfaces by forming protective layers. Its ability to act as a ligand in coordination chemistry makes it valuable in synthesizing and characterizing metal complexes for research and industrial purposes.