1,2-O-Isopropylidene-β-D-lyxo-furanose

In the title compound C8H14O5, the pento­furan­ose five-membered ring has a twisted conformation on two carbon atoms while the five-membered ring of the iso­propyl­idene group has an envelope conformation on an oxygen atom. Hy­droxy groups are involved an infinite network of O—H⋯O hydrogen bonds that leads to the formation of a layer parallel to the (001) plane. Only weak C—H⋯O contacts exist between neighboring layers.