7-Bromo-4-hydroxyquinoline is an organic compound featuring a quinoline core substituted with a bromine atom at the 7-position and a hydroxyl group at the 4-position. This structure makes it a versatile heterocyclic building block. Its primary application is in pharmaceutical research and development, where it serves as a key intermediate for the synthesis of various bioactive molecules. The presence of both a reactive bromine atom and a hydroxyl group allows for further functionalization, enabling the construction of more complex structures. It is notably used in the synthesis of compounds with potential therapeutic activities. As a halogenated heterocycle, it is also a valuable reagent in synthetic organic chemistry for constructing quinoline-based frameworks and for use in cross-coupling reactions.