CC(=O)C1=C(C)N(c2ccccc2)C(=O)C1(NS(=O)(=O)c1ccc(N)cc1)C(F)(F)F
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?