Used primarily as an intermediate in organic synthesis, especially in pharmaceuticals and agrochemicals. Its thiol group allows for coupling reactions, making it valuable in constructing complex molecules. Commonly employed in the development of active pharmaceutical ingredients where bromoaryl motifs are needed for further functionalization. Also utilized in the preparation of ligands for catalysts in cross-coupling reactions. Due to its reactivity, it is handled under controlled conditions to avoid oxidation or unwanted side reactions.