The molecule is a branched amino tetrasaccharide comprising beta-D-galactose at the reducing end having a beta-D-galactosyl-(1->4)-[alpha-L-fucosyl-(1->3)]-N-acetyl-beta-D-glucosaminyl moiety attached at the 3-position. It has a role as an antigen.
N-[(2S,3R,4R,5S,6R)-6-(hydroxymethyl)-2-[(2R,3R,4S,5S,6R)-2,3,5-trihydroxy-6-(hydroxymethyl)oxan-4-yl]oxy-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-3-yl]acetamide