for the following products
1-(4-Nitrophenyl)-N-acetyl-beta-D-glucosaminide | 4-Nitrophenyl 2-acetamido-2-deoxy-beta-D-glucopyranoside | 4-Nitrophenyl-N-acetyl-β-D-glucosaminide | p-Nitrophenyl-beta-D-N-acetyl-glucosaminide and 4-Nitrophenyl-N-acetyl-beta-D-glucosaminide
