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Table 1 Extent of primary amine acetylation as determined by 1H NMR spectroscopy.

From: Acetylation of PAMAM dendrimers for cellular delivery of siRNA

Sample (-CH3/-CH2-) ratio Number of acetyl groups added Percent of primary amine acetylation
Ac20 0.041 27 21.1
Ac40 0.075 50 39.1
Ac60 0.115 76 59.4
Ac84 0.16 107 83.6