October 2010 issue
Cover illustration: Ranunculin (5S)-5-[(-D-glucopyranosyloxy)methyl]furan-2(5H)-one}, is the glycosidic precursor of the vesicant rotoanemonin present in numerous species of Rannunculaceae and is especially associated with the burning sensation on chewing leaves of buttercup plants. The sample reported here is a natural product isolated from the plant and the absolute structure of the molecule follows from that of the D-glucopyranosyl moiety. See Benn, Yelland & Parvez [Acta Cryst. (2010). E66, o2503].