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The rate constants for the reactions of hydrogen peroxide with ferrous complexes of ATP, ADP, UTP, citrate and pyrophosphate were measured at pH 7.2. These ligands are potential chelators of iron(II) in the low-molecular weight iron pool that may catalyze oxidative degradation of tissues. The second-order rate constants range from 5.5 x 10 3 M -1 s -1 (UTP) to 1 x...