The molecule is a disaccharide consisting of a beta-D-galactopyranose residue and a beta-D-galactofuranose residue joined in sequence by a (1->6) glycosidic bond. It is a galactooligosaccharide and a glycosylgalactose.
(2R,3R,4S,5R,6R)-2-(hydroxymethyl)-6-[(2R)-2-hydroxy-2-[(2S,3R,4R,5R)-3,4,5-trihydroxyoxolan-2-yl]ethoxy]oxane-3,4,5-triol