Used primarily as an intermediate in the synthesis of plasticizers, especially for polyvinyl chloride (PVC). These plasticizers improve flexibility, durability, and workability of plastic products. It is also employed in the production of lubricants and surfactants due to its branched-chain alcohol structure, which provides good thermal stability and low volatility. Additionally, it finds use in formulating specialty esters for applications in coatings, adhesives, and sealants where resistance to water and aging is required.