Used primarily as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. It serves as a reagent for introducing the mesityl group into complex molecules, enhancing steric bulk and stability. Commonly employed in the preparation of ligands for catalysis, especially in transition metal complexes used in cross-coupling reactions. Also utilized in the synthesis of dyes, fragrances, and specialty polymers due to its aromatic character and reactivity. Its stability under various reaction conditions makes it valuable in multi-step synthetic routes.