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The kinetics of hydrolysis of cationic reactive disperse dyes containing quaternary group and chemical shift(13CNMR) of the adjacent carbon atoms with pyridine-acetylamino were discussed. The results show pyridine-acetylamino reactive group had higher reactivity than chloroacetylamino and chemical shift(13CNMR) of the adjacent carbon atoms with pyridine-acetylamino moved 18.77 ppm.