Methyl 2-bromobut-2-enoate is widely used as a versatile intermediate in organic synthesis, particularly in the production of pharmaceuticals and agrochemicals. Its reactive bromoalkene functionality makes it valuable for coupling reactions, such as Suzuki and Heck reactions, enabling the construction of complex molecular structures. It is also employed in the synthesis of heterocyclic compounds, which are essential in drug development. Additionally, this compound serves as a precursor for the preparation of various esters and carboxylic acids, contributing to the manufacture of specialty chemicals. Its role in polymer chemistry includes acting as a monomer or cross-linking agent to modify polymer properties.