Used in organic synthesis as an intermediate for pharmaceuticals and bioactive compounds. Its alkyne functionality allows participation in click chemistry reactions, particularly copper-catalyzed azide-alkyne cycloaddition (CuAAC), making it valuable in drug discovery and bioconjugation. Commonly employed in the development of enzyme inhibitors and targeted therapeutics due to the nicotinamide moiety’s role in biological redox processes. Also applied in materials science for constructing functional polymers and molecular probes.