1,4-Butanediamine Dihydrobromide is primarily used in organic synthesis as a building block for the preparation of various chemical compounds. It serves as a key intermediate in the production of polymers, particularly polyamides and polyurethanes, which are essential in manufacturing fibers, plastics, and coatings. Additionally, it is utilized in the synthesis of pharmaceuticals, where it acts as a precursor for drugs targeting neurological and cardiovascular conditions. Its role in cross-linking agents also makes it valuable in the development of adhesives and resins. In research, it is employed as a reagent for studying biochemical processes and enzyme interactions.