The molecule is an amino pentasaccharide consisting of alpha-L-fucoopyranose, beta-D-galactopyranose and 2-acetamido-2-deoxy-D-galactopyranose residues joined in sequence by (1->2) and (1->3) glycosidic linkages and in which the hydroxy group at position 6 of the acetamidogalactopyranose moiety has been glycosylated by a 2-acetamido-2-deoxy-4-O-(3-O-sulfo-beta-D-galactopyranosyl)-beta-D-glucopyranosyl group. It is an amino pentasaccharide, a member of acetamides and an oligosaccharide sulfate. It derives from an alpha-L-Fucp-(1->2)-beta-D-Galp-(1->3)-D-GalpNAc and a beta-D-Galp-(1->3)-[beta-D-Galp3S-(1->4)-beta-D-GlcpNAc-(1->6)]-D-GalpNAc.
[(2S,3R,4S,5S,6R)-2-[(2R,3S,4R,5R,6R)-5-acetamido-6-[[(2R,3R,4R,5R)-5-acetamido-4-[(2R,3R,4S,5R,6R)-4,5-dihydroxy-6-(hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-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] hydrogen sulfate