The molecule is an amino tetrasaccharide that is 2-acetamido-2-deoxy-alpha-D-galactopyranosyl-(1->3)-alpha-D-galactopyranosyl-(1->3)-2-acetamido-2-deoxy-D-galactopyranose in which the hydroxy group at position 2 of the central alpha-D-galactopyranosyl moiety has been glycosylated by an alpha-L-fucopyranosyl group. It is an amino tetrasaccharide and a member of acetamides. It derives from an alpha-D-GalpNAc-(1->3)-[alpha-L-Fucp-(1->2)]-alpha-D-Galp.
N-[(2R,3R,4R,5R,6R)-2-[(2S,3R,4S,5S,6R)-2-[(3R,4R,5R,6R)-3-acetamido-2,5-dihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-5-hydroxy-6-(hydroxymethyl)-3-[(2S,3S,4R,5S,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxyoxan-4-yl]oxy-4,5-dihydroxy-6-(hydroxymethyl)oxan-3-yl]acetamide