CCOC(=O)C(NC(=O)c1cccc(Cl)c1)(Nc1cccc(C)c1)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?