Lo Kong Mun, Ng Seik Weng
Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 25;65(Pt 5):o1101. doi: 10.1107/S1600536809014627.
The two independent mol-ecules in the title compound (systematic name: 4-amino-4-oxobut-2-enoic acid), C(10)H(9)NO(3), are both essentially planar (r.m.s. deviations = 0.05 and 0.06 Å). In both mol-ecules, the -OH group forms an intra-molecular hydrogen bond to the amide O atom. Adjacent mol-ecules are linked by N-H⋯O hydrogen bonds into a flat ribbon that runs along the a axis of the monoclinic unit cell.
标题化合物（系统名称：4-氨基-4-氧代-2-丁烯酸）C(10)H(9)NO(3)中的两个独立分子基本都是平面的（均方根偏差分别为0.05和0.06 Å）。在这两个分子中，-OH基团与酰胺O原子形成分子内氢键。相邻分子通过N-H⋯O氢键连接成一条沿着单斜晶胞a轴延伸的扁平带状结构。
