Benzene-1,4-diboronic acid is widely used in organic synthesis, particularly in Suzuki-Miyaura cross-coupling reactions. This reaction is essential for forming carbon-carbon bonds, enabling the creation of complex organic molecules, including pharmaceuticals, agrochemicals, and advanced materials. The compound serves as a key building block in the production of biaryl compounds, which are important in drug discovery and development. Additionally, it is utilized in the synthesis of organic semiconductors and polymers, contributing to the development of electronic devices such as OLEDs and solar cells. Its ability to act as a linker in metal-organic frameworks (MOFs) also makes it valuable in materials science for applications like gas storage and catalysis.