Diisobutylamine hydrochloride is primarily used in organic synthesis as a reagent or intermediate. It plays a role in the production of pharmaceuticals, where it can be utilized to create compounds with specific biological activities. Additionally, it is employed in the synthesis of agrochemicals, contributing to the development of pesticides or herbicides. Its properties also make it useful in the preparation of surfactants and corrosion inhibitors, which are applied in industrial processes. In research, it serves as a building block for developing novel chemical entities or studying reaction mechanisms.