Used primarily as an intermediate in the production of specialty chemicals, 1-undecene serves as a key building block in synthesizing alcohols, amines, and other functionalized compounds through processes like hydroformylation and epoxidation. It is employed in the manufacture of surfactants, lubricants, and plasticizers due to its long hydrophobic chain and reactive terminal double bond. In polymer chemistry, it acts as a comonomer in copolymerization reactions to modify polymer properties such as flexibility and thermal stability. It is also utilized in fragrance formulations, where it contributes to green, floral, or citrus notes after chemical modification. Additionally, 1-undecene finds use in research and development for surface modification and as a reagent in organic synthesis.