3-Bromobiphenyl is primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals, agrochemicals, and specialty chemicals. It serves as a building block in the creation of more complex molecules, often through coupling reactions like Suzuki-Miyaura or Ullmann reactions. In material science, it is utilized in the development of liquid crystals and organic semiconductors, contributing to advancements in display technologies and electronic devices. Additionally, it finds application in research and development for studying reaction mechanisms and developing new synthetic methodologies. Its role in these areas highlights its importance in industrial and academic chemistry.