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In the title compound, C11H16N4O2, the dihedral angle between the benzene ring and the plane of the four carbon atoms in the piperazine ring is 12.17 (3)°; the latter ring adopts a chair conformation. An intramolecular N—H...O hydrogen bond generates an S(6) ring. In the crystal, the molecules are linked by N—H...N hydrogen bonds, forming chains.
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