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In the title compound, C25H22BrN3O5S, the central benzene ring makes dihedral angles of 4.41 (10), 67.09 (9) and 62.05 (10)°, respectively, with the pyrazolone, bromo­benzene and terminal phenyl rings. The dihedral angle between the pyrazolone and phenyl rings is 57.75 (11)°. In the crystal, two pairs of C—H...O hydrogen bonds link the mol­ecules into inversion dimers. A weak intra­molecular C—H...O hydrogen bonds is also observed.

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In the title compound, C26H24BrN3O5S, the central benzene ring makes dihedral angles of 6.27 (6), 33.63 (6) and 69.31 (5)°, respectively, with the pyrazolone ring, the bromo­benzene ring and the terminal phenyl ring. An intra­molecular C—H...O hydrogen bond occurs. The crystal packing features weak non-classical C—Br...O inter­actions [Br...O = 3.222 (2) Å] that form inversion-related dimers.
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