The molecule is a mannopentaose consisting of D-mannose in which the hydroxy groups at positions 2 and 6 have each been glycosylated by an alpha-D-mannopyranosyl-(1->2)-alpha-D-mannopyranosyl group.
(2R,3S,4S,5S,6R)-2-[(2S,3S,4S,5S,6R)-2-[[(2R,3S,4S,5S)-5-[(2R,3S,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2R,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-3,4,6-trihydroxyoxan-2-yl]methoxy]-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol