81228-99-1
5-acetamido-9-O-acetyl-3,5-dideoxy-D-glycero-β-D-galacto-2-nonulopyranosonic acid
19342-33-7
(2S,4S,5S,6R)-5-acetamido-2,4-dihydroxy-6-[(1R,2R)-1,2,3-trihydro xypropyl]tetrahydropyran-2-carboxylic acid
56-45-1
L-丝氨酸
75-99-0
茅草枯
52-90-4
半胱氨酸

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