11-Heneicosanol is primarily utilized in the field of organic synthesis and materials science. It serves as a key intermediate in the production of various long-chain fatty alcohols and esters, which are essential components in the formulation of lubricants, plasticizers, and surfactants. Its long hydrocarbon chain makes it suitable for creating hydrophobic coatings and films, often applied in industrial and protective materials. Additionally, it is used in research and development for studying the properties of long-chain alcohols and their derivatives in biochemical and environmental applications. Its role in the synthesis of specialized chemicals for cosmetics and personal care products is also noteworthy, where it contributes to the texture and stability of formulations.