Used as a key building block in the synthesis of metal-organic frameworks (MOFs) and covalent organic frameworks (COFs), this compound acts as a multitopic linker due to its four carboxylic acid groups and rigid, conjugated backbone. Its extended aromatic structure enables the construction of porous, highly ordered materials with large surface areas, which are suitable for gas storage, catalysis, and chemical sensing. The acetylene groups allow for further functionalization via click chemistry or Sonogashira coupling, making it valuable in designing advanced functional materials for optoelectronics and energy conversion systems.