Used as a quaternary ammonium reagent in organic synthesis, particularly in alkylation reactions. It serves as a precursor for preparing functionalized alkynes and is employed in the development of ionic liquids due to its stable ammonium core and reactive alkyne group. Its iodide salt form enhances solubility and reactivity in polar solvents, making it suitable for catalysis and phase-transfer applications. Also explored in the synthesis of conductive polymers and electroactive materials.