Synthesis, characterization and supra-molecular analysis for ()-3-(pyridin-4-yl)acrylic acid.

The title compound, CHNO, crystallizes as prismatic colourless crystals in space group , with one mol-ecule in the asymmetric unit. The pyridine ring is fused to acrylic acid, forming an almost planar structure with an -configuration about the double bond with a torsion angle of -6.1 (2)°.