3-O-(2-acetamido-2-deoxy-3-O-beta-galactopyranosyl-beta-glucopyranosyl)-beta-galactopyranoside 4-nitrophenyl ester
3-o-(2-acetamido-2-deoxy-3-o-beta-galactopyranosyl-beta-glucopyranosyl)-beta-galactopyranoside 4-nitrophenyl ester