Used primarily as an intermediate in the synthesis of pharmaceuticals and agrochemicals. Its halogen substituents allow for selective cross-coupling reactions, making it valuable in building complex organic molecules. Commonly employed in Suzuki, Stille, and Ullmann reactions to introduce aromatic frameworks in drug development. Also utilized in the preparation of functionalized tolunitriles and biaryl compounds. Its reactivity profile supports stepwise functionalization, enabling fine-tuning of molecular structure in research and industrial settings.