1,1'-Ferrocenediboronic acid is primarily utilized in organic synthesis and materials science due to its unique ferrocene backbone and boronic acid functional groups. It serves as a key building block in the preparation of complex organic molecules, particularly in Suzuki-Miyaura cross-coupling reactions, where it facilitates the formation of carbon-carbon bonds. This compound is also employed in the development of electrochemical sensors and biosensors, leveraging its redox-active ferrocene moiety for signal transduction. Additionally, it finds applications in the creation of supramolecular assemblies and coordination polymers, where its boronic acid groups enable the formation of dynamic covalent bonds. In materials science, it is used to modify surfaces and synthesize functionalized polymers with tailored properties. Its versatility makes it valuable in catalysis, molecular recognition, and the design of advanced materials.