Used as a key building block in Suzuki-Miyaura cross-coupling reactions, enabling the synthesis of complex biaryl compounds widely found in pharmaceuticals, agrochemicals, and organic materials. Its dual boronic acid groups allow for sequential or selective coupling, making it valuable in drug discovery and the development of conjugated polymers for electronic devices. Also employed in the preparation of covalent organic frameworks (COFs) due to its rigid biphenyl structure and reactive sites.