The molecule is a disaccharide consisting beta-D-glucosyl and D-glucuronic acid residues joined by a (1->3)-linkage. It is a carbohydrate acid and a glycosylglucopyranuronic acid. It derives from a cellobiose. It is a conjugate acid of a 3-O-beta-D-glucosyl-D-glucuronate.
(2S,3R,4S,5R)-2,3,5-trihydroxy-6-oxo-4-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexanoic acid