Used as an analytical reagent for the detection and separation of metal ions, particularly in the determination of cobalt and nickel in alloy samples. Forms stable, colored complexes with these metals, enabling quantification through spectrophotometric methods. Also applied in solvent extraction processes due to its selective chelating properties, improving recovery efficiency in hydrometallurgical operations. Its derivatized structure enhances solubility in organic solvents, making it suitable for use in non-aqueous systems.