Cc1ccc(S(=O)(=O)NC2(C(F)(F)F)C(=O)Nc3c2c(=O)n(C)c(=O)n3C)cc1
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?