K. Lo, S. Ng,
Apr 25, 2009
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Influential Citations
8
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The two independent molecules in the title compound (systematic name: 4-amino-4-oxobut-2-enoic acid), C10H9NO3, are both essentially planar (r.m.s. deviations = 0.05 and 0.06 Å). In both molecules, the –OH group forms an intramolecular hydrogen bond to the amide O atom. Adjacent molecules are linked by N—H⋯O hydrogen bonds into a flat ribbon that runs along the a axis of the monoclinic unit cell.