Used as a multifunctional building block in the synthesis of porous organic frameworks, particularly covalent organic frameworks (COFs). Its multiple aldehyde groups enable Schiff base reactions with amine-containing linkers, facilitating the construction of extended conjugated networks with high surface area. These materials are explored for gas storage, catalysis, and chemical sensing due to their ordered structures and tunable porosity. Also employed in the development of functional polymers and as a precursor for post-synthetic modifications in advanced material design.