Octadecan-9-ol is widely used in the formulation of lubricants and surfactants due to its long hydrocarbon chain, which provides excellent lubrication and emulsifying properties. It is also employed in the production of cosmetics and personal care products, where it acts as a thickening agent and stabilizer, enhancing the texture and consistency of creams and lotions. Additionally, it finds application in the manufacturing of industrial cleaning agents, where it helps in breaking down grease and oil. Its role in the synthesis of plasticizers and coatings further extends its utility in the polymer industry, improving flexibility and durability of materials.