Acta Cryst. (2009). E65, o471-o472 [ doi:10.1107/S1600536809002074 ]
Abstract: The asymmetric unit of the title compound, C22H26O8, contains two crystallographically independent molecules with closely comparable conformations (r.m.s. overlay = 0.54 Å for 30 non-H atoms). All six-membered rings display chair conformations, with a slight distortion for the lactone ring. The molecules are connected by O-HO hydrogen bonds into chains along , with the independent molecules segregated into separate chains. The two molecules in the asymmetric unit face each other in a head-to-tail fashion, with the furan ring of one molecule turned towards the carboxylic acid terminal of the other molecule.
Online 6 February 2009
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