The molecule is a seven-membered branched glucosamine oligosaccharide consisting of beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-D-Galp-(1->4)-beta-D-GlcpNAc-(1->3)-beta-D-Galp having a beta-D-Galp-(1->4)-beta-D-GlcpNAc attached at the 6-position of the central galactosyl residue.
N-[(2R,3R,4R,5S,6R)-2-[[(2R,3S,4S,5R,6S)-4-[(2S,3R,4R,5S,6R)-3-acetamido-4-hydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-2-yl]oxy-6-[(2R,3S,4R,5R,6S)-5-acetamido-4-hydroxy-2-(hydroxymethyl)-6-[(2R,3R,4S,5S,6R)-2,3,5-trihydroxy-6-(hydroxymethyl)oxan-4-yl]oxyoxan-3-yl]oxy-3,5-dihydroxyoxan-2-yl]methoxy]-4-hydroxy-6-(hydroxymethyl)-5-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyoxan-3-yl]acetamide