Used as a key intermediate in the synthesis of pharmaceutical compounds, particularly in the development of kinase inhibitors and anti-cancer agents. Its alkyne and carboxylic acid functional groups allow for versatile chemical modifications, including coupling reactions and amide bond formation. Commonly employed in medicinal chemistry for constructing biologically active molecules due to its ability to enhance binding affinity and metabolic stability. Also utilized in research settings for labeling and bioconjugation strategies involving click chemistry.