The title mol-ecule, C(12)H(12)N(2)O(6), features an E conformation about the oxime group. The methoxy-imino and ester residues are effectively coplanar with each other (r.m.s. deviation for the nine non-H atoms = 0.127 Å) and almost orthogonal [with dihedral angles of 99.44 (13) and -77.85 (13)°, respectively] to the carbonyl and nitro-phenyl groups which lie to either side of this central plane. The crystal structure is consolidated by C-H⋯O contacts.