Fun, H.-K.Yeap, C.S.Malladi, S.Padaki, M.Isloor, A.M.2026-02-052009Acta Crystallographica Section E: Structure Reports Online, 2009, 65, 9, pp. o2234-16005368https://doi.org/10.1107/S1600536809033169https://idr.nitk.ac.in/handle/123456789/27593In the title mol-ecule, C<inf>9</inf>H<inf>13</inf>N<inf>9</inf>O, the non-hydrogen atoms of the hydrazide group are essentially planar [maximum deviation = 0.028 (1) Å for one of the N atoms]. The mean plane of this group forms a dihedral angle of 83.34 (5)° with the plane of the benzene ring. In the crystal structure, molecules are linked by inter-molecular N - H?O, N - H?N and weak C - H?N hydrogen bonds into a two-dimensional network parallel to the ab plane. Additional stabilization is provided by a weak C - H?? inter-action. © Fun et al. 2009.