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Key indicatorsSingle-crystal X-ray study T = 293 K Mean (C-C) = 0.003 Å R factor = 0.046 wR factor = 0.146 Data-to-parameter ratio = 11.5For details of how these key indicators were automatically derived from the article, see A view of (I), with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level and H atoms are shown as small spheres of arbitrary radii. organic papers Acta Cryst. (2005). E61, o3636-o3638 Udaya lakshmi et al. C 9 H 7 NO 4 o3637

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