The molecule is alpha-D-Manp-(1->6)-D-Manp in which the anomeric configuration at the reducing end is beta. It has a role as an epitope.
(2R,3S,4S,5S,6R)-6-[[(2S,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol