1-(4-Bromophenyl)-2-thiourea is primarily used in organic synthesis as a building block for the preparation of various heterocyclic compounds. It serves as a key intermediate in the development of pharmaceuticals, particularly in the synthesis of compounds with potential biological activities, such as antimicrobial, antiviral, or anticancer agents. Additionally, it is utilized in research settings to study its reactivity and potential applications in medicinal chemistry. Its thiourea moiety makes it valuable in coordination chemistry, where it can act as a ligand for metal ions, aiding in the development of metal complexes with potential catalytic or therapeutic properties.