Xiao Jie, Yao Ji-Yuan, Zhao Hong
Ordered Matter Science Research Center, College of Chemistry and Chemical, Engineering, Southeast University, Nanjing 210096, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 25;65(Pt 5):o1132. doi: 10.1107/S1600536809014895.
In the mol-ecule of the title compound, C(15)H(13)N(3)O(4), the dihedral angle between the pyrazole and benzene ring planes is 67.7 (1)°. The crystal structure is stabilized by an intra-molecular C-H⋯O hydrogen bond and two weak inter-molecular C-H⋯O inter-actions.