3-Undecyne is primarily utilized in organic synthesis as a building block for more complex molecules. It serves as a key intermediate in the production of specialty chemicals, particularly in the development of pharmaceuticals and agrochemicals. Its alkyne functional group makes it valuable for click chemistry reactions, enabling the creation of compounds with high specificity and efficiency. Additionally, it is used in material science for the synthesis of polymers and advanced materials with tailored properties. In research, 3-Undecyne is often employed in studies involving carbon-carbon bond formation and catalytic processes.