Used primarily as an intermediate in organic synthesis, especially in the production of pharmaceuticals and fine chemicals. Its structure, featuring both a cyano group and a carboxylic acid, allows for dual functional reactivity, enabling the formation of amides, esters, and other derivatives. Commonly employed in the development of specialty polymers and as a building block in the synthesis of nitrile-containing compounds with biological activity. Also utilized in research settings for modifying molecular frameworks in medicinal chemistry projects.