Used as a key intermediate in organic synthesis, particularly in the preparation of conjugated polymers and small molecule semiconductors for organic electronics. Its functionalized thiophene core enables the construction of π-conjugated systems used in organic field-effect transistors (OFETs) and organic photovoltaics (OPVs). The carboxylic acid groups allow for further derivatization, such as esterification or amidation, facilitating integration into more complex molecular architectures. Also employed in the development of ligands for metal-organic frameworks (MOFs) and coordination polymers due to its ability to chelate metal ions. Its bromine substituents can undergo cross-coupling reactions, making it valuable in palladium-catalyzed reactions like Suzuki or Stille couplings to extend aromatic systems.