Used primarily as an intermediate in organic synthesis, especially in the preparation of pharmaceuticals and fine chemicals. Its reactive alkene and bromine functionalities allow for selective transformations such as cross-coupling reactions, hydroboration, and nucleophilic substitutions. Commonly employed in the construction of complex molecules where a seven-carbon spacer with terminal reactivity is required. Also utilized in polymer chemistry to introduce functional side chains or modify polymer properties through grafting reactions. Its bifunctional nature makes it valuable in the synthesis of heterocycles and in materials science for designing tailored organic frameworks.