Used primarily as an intermediate in organic synthesis, especially in the production of pharmaceuticals and agrochemicals. Its reactive nitrile group and conjugated double bond make it valuable in cycloaddition and nucleophilic addition reactions. It serves in the preparation of cyclopentenone derivatives, which are key building blocks in synthesizing biologically active molecules, including antiviral and anti-inflammatory agents. Also employed in the development of specialty polymers and photoresists due to its ability to undergo polymerization under specific conditions. Its unique structure allows for functionalization in multi-step synthetic routes, enhancing molecular complexity in fine chemical manufacturing.