The molecule is a branched amino hexasaccharide comprised of a linear sequence of N-acetyl-alpha-neuraminyl, beta-D-galactosyl and N-acetyl-D-glucosamine residues linked (2->3) and (1->3), to the N-acetyl-D-glucosamine residue of which is also linked (1->6) a linear trisaccharide sequence of N-acetyl-alpha-neuraminyl, beta-D-galactosyl and N-acetyl-D-glucosamine residues linked (2->3) and (1->4). It is a glucosamine oligosaccharide, a galactosamine oligosaccharide and an amino hexasaccharide.
(2S,4S,5R,6R)-5-acetamido-2-[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-5-acetamido-6-[[(2R,3R,4R,5R)-5-acetamido-4-[(2R,3R,4S,5S,6R)-4-[(2S,4S,5R,6R)-5-acetamido-2-carboxy-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxan-2-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-3,6-dihydroxyoxan-2-yl]methoxy]-4-hydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-3,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-4-hydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid