The molecule is an amino trisaccharide consisting of alpha-D-galactopyranose, beta-D-galactopyranose and 2-acetamido-2-deoxy-alpha-D-glucopyranose residues joined in sequence by (1->4) glycosidic bonds. It is a member of acetamides and an amino trisaccharide. It derives from a beta-D-Galp-(1->4)-alpha-D-GlcpNAc and an alpha-D-Galp-(1->4)-beta-D-Galp.
N-[(2S,3R,4R,5S,6R)-5-[(2S,3R,4R,5R,6R)-3,4-dihydroxy-6-(hydroxymethyl)-5-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-2,4-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide