N-acetylglucosaminyl-1-3-galactopyranosyl-1-4-N-acetylglucosaminyl-1-3-galactopyranosyl-1-4-glucopyranose
n-acetylglucosaminyl-1-3-galactopyranosyl-1-4-n-acetylglucosaminyl-1-3-galactopyranosyl-1-4-glucopyranose