Used as a key building block in organic synthesis, particularly in the preparation of conjugated polymers and metal-organic frameworks (MOFs). Its dual aldehyde groups enable condensation reactions to form Schiff bases, which are valuable in creating covalent organic frameworks (COFs) for gas storage and catalysis. Also employed in the development of liquid crystals and optoelectronic materials due to its rigid biphenyl structure that supports electron delocalization. Additionally, serves as a precursor in synthesizing ligands for coordination chemistry and in pharmaceutical intermediates where aromatic aldehydes are required.