1-Bromo-4-Phenylnaphthalene is primarily used in organic synthesis as a versatile intermediate. Its structure makes it valuable in the development of complex organic molecules, particularly in the synthesis of pharmaceuticals and agrochemicals. The compound is often employed in cross-coupling reactions, such as Suzuki or Heck reactions, to create biaryl structures, which are common in active pharmaceutical ingredients. Additionally, it serves as a building block in the production of organic electronic materials, including light-emitting diodes (LEDs) and organic field-effect transistors (OFETs), due to its aromatic properties. Its role in research and industrial applications highlights its importance in advancing material science and drug discovery.