英文别名(2S,4S,5R,6R)-5-acetamido-2,4-dihydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid; N-Acetyl-β-neuraminic Acid; Tyrosine Impurity 43 Monomer; 5-acetamido-3,5-dideoxy-D-glycero-D-galacto-2-nonulopyranosonic acid; sialic acid; 5-acetamido-3,5-dideoxy-D-glycero-D-galacto-non-2-ulosonic acid