Used primarily as a chelating agent in analytical chemistry to detect and quantify metal ions. It forms stable complexes with various metals, aiding in their separation and identification. Applied in the synthesis of organic compounds, particularly in the preparation of pharmaceuticals and agrochemicals. Also serves as an intermediate in the production of dyes and pigments. In microbiology, it is utilized as a preservative and antimicrobial agent in certain formulations. Additionally, it finds use in corrosion inhibition for metals in industrial applications.