title: Ethyl 3-(3-oxo-3,4-dihydro-quinoxalin-2-yl)propano-ate.
abstract: In the title compound, C(13)H(14)N(2)O(3), the fused ring system is almost planar (r.m.s. deviation = 0.015 Å). The r.m.s. deviation for all the non-H atoms of the mol-ecule is 0.065Å. In the crystal, N-H⋯O and C-H⋯O hydrogen bonds generate polymeric chains along the b axis containing alternating centrsymmetric R(2) (2)(8) and R(2) (2)(20) loops.
authors: Waqar
authors: W
authors: Nasir
authors: Munawar Ali
authors: MA
authors: Munawar
authors: Ahmad
authors: A
authors: Adnan
authors: Saeed
authors: S
authors: Ahmad
authors: Mohammad
authors: M
authors: Akbar
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