Used primarily as an intermediate in organic synthesis, particularly in the production of pharmaceuticals and fine chemicals. Its ester functionality and substituted aromatic ring make it suitable for use in coupling reactions and as a building block for more complex molecules. Commonly employed in the development of active pharmaceutical ingredients (APIs) where the p-tolyl group contributes to desired biological activity or stability. Also utilized in research settings for the preparation of specialty polymers and functional materials due to its structural rigidity and reactivity profile.