N-(2-Aminophenyl)maleamic acid

Abstract

The title compound [also called (Z)-3-(2-amino­phenyl­carbamo­yl)propenoic acid], C10H10N2O3, is a non-planar amidated maleic acid derivative, with the mean planes through the 2-amino­phenyl and maleamic acid groups inclined at an angle of 43.08 (10)°. Symmetry-related mol­ecules are linked by inter­molecular N—H⋯N hydrogen bonds, forming centrosymmetric amine–amide dimers. The dimers are linked by N—H⋯O and C—H⋯O hydrogen bonds and weak N—H⋯π and π–π inter­actions [C-to-centroid distance 3.510 (3) Å] into a three-dimensional network.