Used in organic synthesis as a building block for pharmaceuticals and agrochemicals, particularly in the development of nicotinamide-based compounds. Its aldehyde and ethynyl functional groups allow for diverse reactions, including cross-coupling, condensation, and cyclization, making it valuable in creating heterocyclic systems. Commonly employed in the synthesis of kinase inhibitors and other bioactive molecules due to its ability to mimic pyridine scaffolds found in drugs. Also applied in materials science for constructing conjugated organic frameworks with potential use in optoelectronics.