The molecule is a linear pentasaccharide consisting of an alpha-D-mannose residue, two beta-D-mannose residues, an alpha-L-rhamnose residue and a beta-D-glucose residue (at the reducing end), joined by sequential (1->2), (1->3), (1->3) and (1->3) linkages.
(2R,3R,4S,5R,6R)-4-[(2S,3R,4R,5S,6S)-4-[(2S,3S,4S,5R,6R)-4-[(2S,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-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,5-dihydroxy-6-methyloxan-2-yl]oxy-6-(hydroxymethyl)oxane-2,3,5-triol