Reduction Potentials

3-Methyl-2-pyrazolin-5-one

(R³ = CH₃, R⁴ = H)

Jovanovic, S.V.; Neta, P.; Simic, M.G.
Mol. Pharmacol. 28: 377-80 (1985)

E = 390(mV), ionic strength = 0.1, pH = 12.2

Reference compound: TMPD
Reference E: 270 mV
Co-solute: Br^–

Concentrations used to estimate equilibrium constant + Kinetics used to estimate equilibrium constant.