Hixson, J.Taylor, D.Ng, S.Tiekink, E.2012-11-202012-11-202012Acta Crystallographica Section E: Structure Reports Online, 2012; 68(2):O509-O5211600-53681600-5368http://hdl.handle.net/2440/74391The title compound, C₂₃H3₃₀O₉, has an approximate T-shape with the tert-butyl ester groups lying either side of the benzene ring. The acetyl group is almost perpendicular to the benzene ring to which it is connected [C-C-O-C torsion angle = -106.7 (3)°]. The conformation about the C=C double bond [1.331 (4) Å] is E. Linear supramolecular chains along the a axis mediated by hydroxy-carbonyl O-H...O hydrogen bonds feature in the crystal packing. The same H atom is also involved in an intramolecular O-H...O interaction.enCopyright © International Union of CrystallographyJournal article002011705910.1107/S160053681200236X0003010592001392-s2.0-8485696931225652Taylor, D. [0000-0002-3302-4610] [0000-0002-4274-3983] [0000-0003-0633-7424]