Used as a key building block in organic synthesis, particularly in the preparation of conjugated polymers and metal-organic frameworks (MOFs). Its ethynyl groups readily undergo coupling reactions, such as Sonogashira and Glaser couplings, enabling the construction of extended π-conjugated systems. These systems are valuable in the development of organic electronics, including organic light-emitting diodes (OLEDs) and field-effect transistors (OFETs). Also employed in the synthesis of carbon-rich molecular architectures and nanomaterials due to its ability to form rigid, linear structures. Its pyridine core provides a coordination site for metals, making it useful in catalysis and the design of functional supramolecular assemblies.