Used as a multifunctional building block in organic synthesis, particularly in the preparation of porous organic frameworks and covalent organic frameworks (COFs). Its four aldehyde groups enable Schiff base reactions with amine-functionalized linkers, facilitating the construction of extended conjugated networks for applications in gas storage, catalysis, and optoelectronic materials. Also employed in the development of fluorescent sensors due to the inherent photophysical properties of the pyrene core, allowing detection of specific analytes through changes in emission behavior. Its rigid, planar structure supports strong π-π stacking, beneficial for charge transport in organic electronic devices.