Used as a multifunctional building block in organic synthesis, particularly in the construction of porous organic frameworks such as covalent organic frameworks (COFs) and metal-organic frameworks (MOFs). Its four aldehyde groups enable robust Schiff base reactions with amine-functionalized linkers, facilitating the formation of stable imine bonds for designing extended network structures. Commonly employed in gas storage, catalysis, and sensing applications due to its rigid aromatic backbone and ability to create well-defined pore architectures. Also utilized in the development of functional polymers and molecular cages where precise spatial arrangement of reactive sites is required.