101410-16-6 5-Acetamido-3,5,7,9-tetradeoxy-7-formamido-L-glycero-L-manno-nonulosonic acid 5-Afpa 5-N-Acetyl-7-N-formylpseudaminic acid L-glycero-L-manno-2-Nonulosonic acid, 5-(acetylamino)-3,5,7,9-tetradeoxy-7-(formylamino)-