benzyl 2-acetamido-3-O-(3-O-(2-acetamido-2-deoxy-beta glucopyranosyl)-beta galactopyranosyl)-2-deoxy-alpha galactopyranoside
benzyl 2-acetamido-3-o-(3-o-(2-acetamido-2-deoxy-beta glucopyranosyl)-beta galactopyranosyl)-2-deoxy-alpha galactopyranoside