Used as a versatile building block in organic synthesis, particularly in cross-coupling reactions such as Suzuki, Stille, and Ullmann reactions. Its multiple halogen substituents allow for selective and sequential functionalization, enabling the construction of complex aromatic compounds. Commonly employed in the development of pharmaceuticals, agrochemicals, and advanced materials where precise molecular architecture is required. The differing reactivity of bromo, chloro, and iodo groups permits stepwise substitution, making it valuable in multi-step synthetic routes. Also utilized in the preparation of ligands, conjugated polymers, and liquid crystals.