The molecule is a glycosylmannose consisting of an beta-D-galactosyl residue attached to alpha-D-mannose at the 3-position. It has a role as an epitope.
(2S,3S,4S,5R,6R)-6-(hydroxymethyl)-4-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxane-2,3,5-triol