The molecule is a glycosylmannose consisting of alpha-D-galactopyranose and beta-D-mannopyranose joined in sequence by a (1->6) glycosidic bond. It derives from an alpha-D-galactose and a beta-D-mannose.
(2R,3S,4S,5S,6R)-6-[[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol