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Acta Cryst. (2014). E70, o89-o90  [ doi:10.1107/S1600536813033989 ]


H.-K. Fun, S. Chantrapromma, P. Ruanwas, T. Kobkeatthawin and C. S. Chidan Kumar

Abstract: The mol­ecule of the title hydrazine derivative, C15H14N4O6, is essentially planar, the dihedral angle between the substituted benzene rings being 2.25 (9)°. The eth­oxy and hy­droxy groups are almost coplanar with their bound benzene ring [r.m.s. deviation = 0.0153 (2) Å for the ten non-H atoms]. Intra­molecular N-H...O and O-H...Oeth­oxy hydrogen bonds generate S(6) and S(5) ring motifs, respectively. In the crystal, mol­ecules are linked by O-H...Onitro hydrogen bonds into chains propagating in [010]. Weak aromatic [pi]-[pi] inter­actions, with centroid-centroid distances of 3.8192 (19) and 4.0491 (19) Å, are also observed.

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