1,5-Decadiyne is primarily utilized in organic synthesis and materials science due to its unique diacetylene structure. It serves as a valuable building block in the preparation of conjugated polymers, which are essential in developing advanced electronic materials, such as organic semiconductors and conductive films. The compound is also employed in click chemistry reactions, particularly in the synthesis of complex molecular architectures through alkyne-azide cycloaddition. Additionally, 1,5-Decadiyne finds applications in the creation of cross-linked networks and dendrimers, which are used in drug delivery systems and nanotechnology. Its reactivity and structural properties make it a versatile component in research and industrial applications.