Used as an intermediate in the synthesis of pharmaceuticals and bioactive molecules, particularly in the development of targeted drug delivery systems. Its aldehyde functional group allows for easy conjugation with amines or hydrazides, making it valuable in bioconjugation chemistry. Commonly employed in the preparation of prodrugs and antibody-drug linkers due to its stability and reactive handle for coupling. Also utilized in the fabrication of functionalized polymers and sensors where controlled binding or release is required.