Used as an intermediate in the synthesis of pharmaceuticals and agrochemicals, particularly in the development of sulfonamide-based compounds. Its bromine functionality allows for cross-coupling reactions, enabling the construction of complex heterocyclic systems. Commonly employed in medicinal chemistry for modifying pyridine scaffolds to enhance biological activity or improve pharmacokinetic properties. Also utilized in the preparation of dyes and functional materials where sulfonic acid groups provide solubility or ionic characteristics.