The molecule is a glycoside that consists of alpha-D-galactosyl-(1->3)-alpha-D-galactosyl-(1->4)-N-acetyl-D-glucosamine in which the hydrogen at the reducing end is substituted by a carboxypentyl group. It is a glycoside, a monocarboxylic acid and a trisaccharide derivative.
6-[(3R,4R,5S,6R)-3-acetamido-5-[(2R,3R,4S,5S,6R)-3,5-dihydroxy-6-(hydroxymethyl)-4-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexanoic acid