The molecule is a linear mannopentaose consisting of five D-mannose residues joined sequentially via two beta(1->2) and two alpha(1->2) linkages with alpha anomeric configuration at the reducing end.
(2S,3S,4S,5S,6R)-3-[(2R,3S,4S,5S,6R)-3-[(2R,3S,4S,5S,6R)-3-[(2S,3S,4S,5S,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3S,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-6-(hydroxymethyl)oxane-2,4,5-triol