Sodium (Trihydroxy)phenylborate is widely used in organic synthesis as a catalyst or reagent, particularly in cross-coupling reactions. It facilitates the formation of carbon-carbon bonds, making it valuable in the production of pharmaceuticals, agrochemicals, and fine chemicals.

In the field of materials science, it is employed in the development of polymers and coatings, where it acts as a stabilizer or cross-linking agent, enhancing durability and performance.

Additionally, it finds application in analytical chemistry as a complexing agent for the detection and quantification of specific ions or molecules. Its ability to form stable complexes makes it useful in various spectroscopic and chromatographic techniques.

In biomedical research, it is explored for its potential in drug delivery systems, where it can be used to modify the release profile of active pharmaceutical ingredients.

Overall, its versatility and reactivity make it a valuable compound in multiple industrial and scientific applications.