The molecule is a glycosylfucose consisting of an alpha-D-glucopyranose residue and an L-fucopyranose residue joined in sequence by a (1->2) glycosidic bond. It derives from a L-fucopyranose and an alpha-D-glucose.
(3S,4R,5S,6S)-6-methyl-3-[(2R,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-2,4,5-triol