Used as a key intermediate in organic synthesis, particularly in the preparation of cyclic compounds through ring-closing metathesis reactions. Its terminal alkene and iodine functionalities allow for further transformations via cross-coupling reactions, such as Heck or Suzuki couplings, enabling the construction of complex organic molecules. Commonly employed in pharmaceutical research and development for modifying molecular frameworks and introducing labeled or functionalized side chains. Also utilized in polymer chemistry to introduce reactive sites or pendant groups in polymeric materials.