Acta Cryst. (2013). C69, 880-883 [ doi:10.1107/S0108270113016119 ]
Synopsis: Molecules of the title compound are linked into chains by intermolecular C=OH-N hydrogen bonds and the chains are weakly interconnected by - stacking interactions. A comparison of the geometric parameters of the title molecule and several related benzimidazoles and pyrrolidones is presented.
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