2-Bromofluorene is primarily used in organic synthesis as a building block for more complex chemical compounds. It serves as an intermediate in the production of pharmaceuticals, agrochemicals, and organic materials. Its bromine atom makes it a valuable reagent for cross-coupling reactions, such as Suzuki and Heck reactions, which are essential in creating carbon-carbon bonds. Additionally, it is utilized in the development of fluorescent dyes and polymers, where its fluorene backbone contributes to the optical properties of the materials. In research, 2-bromofluorene is often employed to study reaction mechanisms and to synthesize novel organic molecules with potential applications in electronics and photonics.