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