Salicylaldoxime is widely used as a chelating agent in analytical chemistry for the extraction and determination of metal ions, particularly copper. It forms stable complexes with copper, making it valuable in spectrophotometric methods for quantifying copper concentrations in various samples, including water and biological fluids. In hydrometallurgy, it is employed for the selective separation and recovery of copper from ores and industrial waste. Additionally, salicylaldoxime finds application in organic synthesis as a reagent for the preparation of heterocyclic compounds and as an intermediate in the synthesis of pharmaceuticals. Its ability to act as a ligand in coordination chemistry also makes it useful in research involving metal-organic frameworks and catalysis.