Salicylhydroxamic acid is primarily used in the field of analytical chemistry as a chelating agent. It forms stable complexes with various metal ions, making it valuable for the detection and quantification of metals such as iron, copper, and zinc in different samples. This property is particularly useful in environmental testing and industrial quality control processes.

In the pharmaceutical industry, it has been explored for its potential antimicrobial and anticancer properties. Research has shown that it can inhibit the growth of certain bacteria and fungi, making it a candidate for developing new therapeutic agents. Additionally, its ability to interfere with enzyme activity has led to studies on its use in cancer treatment, particularly in targeting specific enzymes involved in tumor growth.

In the field of material science, salicylhydroxamic acid is used as a corrosion inhibitor. It helps protect metals from oxidative damage by forming a protective layer on the surface, extending the lifespan of metal components in various industrial applications.

Overall, its versatility in forming complexes, inhibiting microbial growth, and preventing corrosion makes it a valuable compound in multiple scientific and industrial domains.