Used primarily as a chemical intermediate in organic synthesis, especially in the production of tert-amyl methyl ether (TAME) and other fuel additives. It serves as a starting material for synthesizing antioxidants, fragrances, and pharmaceuticals. Also employed in polymer chemistry as a comonomer or chain transfer agent to control molecular weight in certain polymerization processes. Its high reactivity in electrophilic addition reactions makes it valuable in laboratory-scale synthesis and industrial processes requiring alkylation or isomerization steps.