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