Acta Cryst. (2008). E64, o2286-o2287 [ doi:10.1107/S1600536808035939 ]
Abstract: The title compound, C18H20N4O4, exists in the E configuration with respect to the C=N bond of the methylidine unit. The dihedral angle between the two benzene rings is 9.01 (6)°. An intramolecular N-HO hydrogen bond involving the benzoate unit generates an S(6) ring motif. In the crystal, the molecules are linked by weak C-HO interactions into infinite chains along the b axis. These chains are further connected into sheets parallel to the ab plane which are stacked approximately along the c axis. A C-H interaction is also observed.
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