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Nucleophilic rate constant values for the reaction between FDNB with biothiol series in aqueous media at 25°C.
| Biothiol | FDNB (sM)−1 | |
|---|---|---|
| L-Cysteine ethyl ester | 6.50 | 5.45 ± 0.17 |
| Cysteine | 8.10 | 21.32 ± 0.66 |
| Glutathione | 8.75 | 66.90 ± 1.62 |
| N-Acetylcysteine | 9.50 | 95.63 ± 3.28 |
