p-Dibromobenzene is primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals, agrochemicals, and dyes. Its role in these processes often involves serving as a building block for more complex molecules. Additionally, it is utilized in the manufacture of flame retardants, where it contributes to enhancing the fire resistance of materials such as plastics and textiles. In research and development, p-dibromobenzene is employed in various chemical reactions, including coupling reactions and as a precursor for synthesizing other brominated compounds. Its stability and reactivity make it a valuable component in industrial and laboratory settings.