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Acta Cryst. (2012). E68, o2738
[ doi:10.1107/S1600536812035672 ]


M. Yu, X. Huang and F. Gao

Abstract: In the title compound, C4H5NO2, the non-H atoms are nearly coplanar, with a maximum deviation of 0.030 (1) Å. In the crystal, pairs of molecules are linked by N-H...O hydrogen bonds into inversion dimers.

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