The molecule is a disaccharide that is beta-D-glucopyranose in which the hydroxy group at position 6 has been converted into the corresponding alpha-L-fucopyranoside. It is a glycoside and a glycosylglucose. It derives from an alpha-L-fucose and a beta-D-glucose.
(2R,3R,4S,5S,6R)-6-[[(2R,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol