Figure 1.
The structures of 4MU-Neu5Ac andpNP-Neu5Ac. (a) 4MU-Neu5Ac, Formula: C21H24NNaO11; MW: 489.41 g/mol; (b) pNP-Neu5Ac, Formula: C17H22N2O11; MW: 430.36 g/mol.
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