Used as a key intermediate in the synthesis of pharmaceuticals, particularly in the development of nicotinamide-based drugs and kinase inhibitors. Its functional groups—bromine, aldehyde, and nitrile—allow for selective reactions, enabling the construction of complex heterocyclic systems. Commonly employed in cross-coupling reactions such as Suzuki or Heck reactions to form carbon-carbon bonds. Also utilized in the preparation of fluorescent dyes and organic semiconductors due to its conjugated structure and electron-withdrawing properties.