biostudies-literatureUnknown65(Pt 2)Portalone GThe crystal structure of the title compound, C(9)H(10)O(4), was first reported by Swaminathan, Vimala & Lotter [Acta Cryst. (1976), B32, 1897-1900]. It has been re-examined, improving the precision of the derived geometric parameters. The asymmetric unit comprises a non-planar independent mol-ecule, as the meth-oxy substituents force the carb-oxy group to be twisted away from the plane of the aromatic ring by 56.12 (9)°. Due to the anti-planar conformation adopted by the OH group, the mol-ecular components do not form the conventional dimeric units, but are associated in the crystal in chains stabilized by linear O-H⋯O hydrogen bonds, involving the OH groups and the carbonyl O atoms, which form C(3) motifs.Acta crystallographica. Section E, Structure reports onlineo327-8https://www.ebi.ac.uk/biostudies/studies/S-EPMC2968263biostudies-literatureRedetermination of 2,6-dimethoxy-benzoic acid.PMC2968263Portalone GfalseRedetermination of 2,6-dimethoxy-benzoic acid.The crystal structure of the title compound, C(9)H(10)O(4), was first reported by Swaminathan, Vimala & Lotter [Acta Cryst. (1976), B32, 1897-1900]. It has been re-examined, improving the precision of the derived geometric parameters. The asymmetric unit comprises a non-planar independent mol-ecule, as the meth-oxy substituents force the carb-oxy group to be twisted away from the plane of the aromatic ring by 56.12 (9)°. Due to the anti-planar conformation adopted by the OH group, the mol-ecular components do not form the conventional dimeric units, but are associated in the crystal in chains stabilized by linear O-H⋯O hydrogen bonds, involving the OH groups and the carbonyl O atoms, which form C(3) motifs.2009-01-01T00:00:00Z2009 Jan2025-04-04T19:42:39.341Z2019-03-27T00:00:05ZS-EPMC29682632158193210.1107/S1600536809001408