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(2011/05/12)Methyl 5-acetamido-2,3,5-trideoxy-8,9-O-isopropylidene-D-glycero-D-galacto-non-2-enopyranosonate
methyl 5-acetamido-2,4,7,8,9-penta-O-acetyl-3,5-dideoxy-D-glycero-D-galacto-2-nonulopyranosonate
methyl-2,3-didehydro-4,7,8,9-tetra-O-acetyl-N-acetylneuraminate
N-acetylneuraminic acid methyl ester
N-acetyl neuraminic acid