biostudies-literatureUnknown71(Pt 5)Peppel TThe mol-ecule of the title compound, C5H8O2, a low-melting α,β-unsaturated carb-oxy-lic acid, is essentially planar [maximum displacement = 0.0239 (13) Å]. In the crystal, mol-ecules are linked into centrosymmetric dimers via pairs of O-H⋯O hydrogen bonds.Acta crystallographica. Section E, Crystallographic communicationso316https://www.ebi.ac.uk/biostudies/studies/S-EPMC4420089biostudies-literatureCrystal structure of (E)-pent-2-enoic acid.PMC4420089Wohlrab SSpannenberg APeppel TSonneck MfalseCrystal structure of (E)-pent-2-enoic acid.The mol-ecule of the title compound, C5H8O2, a low-melting α,β-unsaturated carb-oxy-lic acid, is essentially planar [maximum displacement = 0.0239 (13) Å]. In the crystal, mol-ecules are linked into centrosymmetric dimers via pairs of O-H⋯O hydrogen bonds.2015-01-01T00:00:00Z2015 May2025-04-27T01:01:13.223Z2019-03-27T01:51:01ZS-EPMC44200892599592410.1107/S2056989015007203