Cc1cc(NC(=O)CS(=O)(=O)c2cn(Cc3cccc(C(F)(F)F)c3)c3ccccc23)no1
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?