4-Bromostilbene is primarily utilized in organic synthesis as a key intermediate in the production of various organic compounds. Its structure, featuring a bromine atom attached to a stilbene framework, makes it a valuable building block in the creation of more complex molecules. It is often employed in cross-coupling reactions, such as Suzuki or Heck reactions, which are pivotal in the synthesis of pharmaceuticals, agrochemicals, and advanced materials. Additionally, 4-Bromostilbene is used in the development of liquid crystals and optical brighteners, contributing to the manufacturing of displays and fluorescent materials. Its role in research also extends to studying photochemical reactions and as a model compound in understanding reaction mechanisms in organic chemistry.