Used as a key intermediate in the synthesis of various pharmaceuticals, particularly in the production of cephalosporin antibiotics, which are widely used to treat bacterial infections. It plays a crucial role in the formation of the beta-lactam ring, a structural component essential for the antibiotic's activity. Additionally, it is employed in organic synthesis for creating complex molecules due to its reactive cyano and ester functional groups. Its application extends to agrochemical research, where it serves as a building block for developing pesticides and herbicides.