Aluminium bromide is widely used as a catalyst in organic synthesis, particularly in reactions such as alkylation and acylation of aromatic compounds. It plays a key role in Friedel-Crafts reactions, where it helps form carbon-carbon bonds, making it valuable in the production of complex organic molecules. The compound is also employed in the synthesis of other brominated compounds due to its ability to transfer bromine atoms efficiently. In industrial settings, it supports the manufacturing of pharmaceuticals, agrochemicals, and specialty polymers. Its strong Lewis acid properties make it effective in promoting various electrophilic addition and ring-closure reactions.