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cif-access (organic compounds)
In the title molecule, C21H20BrNO3, the coumarin moiety is planar and the tetrahydrobenzene ring adopts a half-chair conformation. The planes of the coumarin and phenyl rings form a dihedral angle of 50.97 (8)° between them. The crystal structure is stabilized by O-HO hydrogen bonds involving carbonyl and hydroxyl O atoms.