The molecule is a disaccharide that is beta-D-galactopyranose in which the hydroxy group at position 6 has been glycosylated by an alpha-L-fucopyranosyl group. It is a glycoside, an alpha-L-fucoside and a glycosylgalactose. It derives from a beta-D-galactose.
(2R,3R,4S,5R,6R)-6-[[(2R,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol