[1,1'-Biphenyl]-3,4'-dicarboxylic acid finds application in the synthesis of advanced materials, particularly in the development of organic semiconductors and liquid crystals. Its biphenyl core, combined with carboxylic acid functional groups, makes it a valuable building block for creating conjugated polymers and small molecules used in organic electronics. These materials are essential in the production of organic light-emitting diodes (OLEDs), organic field-effect transistors (OFETs), and photovoltaic devices. Additionally, it serves as a precursor in the design of metal-organic frameworks (MOFs), which are utilized in gas storage, separation, and catalysis due to their high surface area and tunable porosity. Its structural rigidity and ability to form stable coordination bonds with metal ions further enhance its utility in material science and coordination chemistry.