1 E3M (1r)-4-acetamido-3-amino-1,5-anhydro-2,3,4-trideoxy-1-sulfo-D-glycero-D-galacto-octitol 1.000 2 GYG (1r)-4-acetamido-1,5-anhydro-3-carbamimidamido-2,3,4-trideoxy-1-sulfo-D-glycero-D-galacto-octitol 0.800 3 4AM 4-amino-2-deoxy-2,3-dehydro-N-acetyl-neuraminic acid 0.708