This chemical is primarily utilized in the synthesis of complex organic molecules, particularly in the field of medicinal chemistry. It serves as a key intermediate in the development of drug candidates, especially those targeting specific biological pathways. Its structure, containing both an aldehyde and ester functional group, allows for versatile reactivity, making it suitable for coupling reactions and further modifications. Additionally, it is employed in the preparation of polyethylene glycol (PEG) derivatives, which are widely used in drug delivery systems to enhance solubility, stability, and bioavailability of therapeutic agents. Its application extends to the design of bioconjugates, where it aids in linking bioactive molecules to carriers or other functional groups for targeted delivery.