This chemical is primarily utilized in the field of organic synthesis, where it serves as a key intermediate in the production of complex organic compounds. Its structure, featuring both ethyl and ethynyl groups attached to a biphenyl core, makes it valuable for constructing molecules with specific electronic and steric properties. It is often employed in the development of advanced materials, such as liquid crystals, which are essential for display technologies like LCDs. Additionally, it finds use in pharmaceutical research for designing drug candidates, particularly those targeting receptors or enzymes where the biphenyl moiety is a critical pharmacophore. Its ethynyl group also allows for further functionalization through click chemistry, enabling the creation of diverse molecular architectures for various applications.