The molecule is an amino disaccharide consisting of beta-D-glucopyranuronic acid having a 4-acetamido-4,6-dideoxy-2-O-methyl-alpha-L-galactopyranosyl attached at the 4-position. It derives from a beta-D-glucuronic acid.
(2S,3S,4R,5R,6R)-3-[(2S,3S,4R,5S,6S)-5-acetamido-4-hydroxy-3-methoxy-6-methyloxan-2-yl]oxy-4,5,6-trihydroxyoxane-2-carboxylic acid