title: (2Z)-4-[(2-Hy-droxy-phen-yl)carbamo-yl]prop-2-enoic acid.
abstract: In the title compound, C(10)H(9)NO(4), the 2-hy-droxy-anilinic and the 4-oxobut-2-enoic acid groups are almost planar, with r.m.s. deviations of 0.0086 and 0.0262 Å, respectively. The dihedral angle between the two groups is 6.65 (1)°. Intra-molecular N-H⋯O, C-H⋯O and O-H⋯O hydrogen bonds form S(5), S(6) and S(7) ring motifs. In the crystal, the mol-ecules are dimerized due to C-H⋯O and O-H⋯O inter-molecular hydrogen bonds, with R(2) (2)(8) ring motifs. The dimers are inter-linked into polymeric chains along [010] with R(4) (3)(13) ring motifs by C-H⋯O, N-H⋯O and O-H⋯O hydrogen bonds.
authors: Farooq Ali
authors: FA
authors: Shah
authors: Saqib
authors: S
authors: Ali
authors: M Nawaz
authors: MN
authors: Tahir
authors: Sajjad
authors: S
authors: Ahmed
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
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references: Acta Crystallogr D Biol Crystallogr. 2009 Feb;65(Pt 2):148-55
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references: Acta Crystallogr Sect E Struct Rep Online. 2008 Aug 06;64(Pt 9):o1661
references: 21201654