Cc1noc(NS(=O)(=O)c2ccc(NC(=O)c3nn(-c4ccc(F)cc4)ccc3=O)cc2)c1C
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?