β-Bromo-4-nitrophenetole is primarily utilized in organic synthesis as an intermediate for the production of various chemical compounds. It is particularly valuable in the synthesis of pharmaceuticals, where it serves as a building block for active pharmaceutical ingredients (APIs). The compound is also employed in the development of agrochemicals, contributing to the creation of herbicides and pesticides. Additionally, it finds use in research laboratories for studying chemical reactions and mechanisms, especially those involving nitro and bromo functional groups. Its role in the synthesis of dyes and pigments further extends its application in the chemical industry.