The molecule is a trisaccharide consisting of beta-D-xylopyranose, alpha-L-arabinopyranose and beta-D-glucopyranose joined together in sequence by (1->2) and (1->6)-glycosidic bonds, respectively. It derives from an alpha-L-Arap-(1->6)-beta-D-Glcp.
(2R,3R,4S,5S,6R)-6-[[(2S,3R,4S,5S)-4,5-dihydroxy-3-[(2S,3R,4S,5R)-3,4,5-trihydroxyoxan-2-yl]oxyoxan-2-yl]oxymethyl]oxane-2,3,4,5-tetrol