CCN(CC(=O)Nc1c(F)cccc1F)C(=O)c1cc(S(=O)(=O)NCc2ccccc2)ccc1C
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?