Used as a key intermediate in the synthesis of functional organic materials, particularly in the development of conjugated polymers and metal-organic frameworks (MOFs). Its dual aldehyde and bromine functionalities allow for selective cross-coupling reactions, making it valuable in constructing complex molecular architectures for optoelectronic devices. Commonly employed in Suzuki and Heck reactions to build extended π-systems used in organic semiconductors and sensors. Also serves as a building block in covalent organic frameworks (COFs), where its rigid aromatic structure enhances framework stability and porosity. The presence of bromine atoms enables post-synthetic modifications, facilitating the fine-tuning of electronic properties in advanced materials.