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