Used primarily as a building block in organic synthesis, especially in the preparation of pharmaceuticals and fine chemicals. It serves as a reactive ester in conjugation with alkynes and alkenes through cycloaddition reactions, making it valuable in the development of complex molecular structures. Commonly employed in research settings for synthesizing chalcone derivatives and other biologically active compounds. Its α,β-unsaturated carbonyl system allows for Michael addition reactions, useful in creating carbon-carbon bonds. Also utilized in the design of photoactive compounds and fluorescent probes due to its conjugated structure.