CN(CC(=O)Nc1ccc(Cl)c(C(F)(F)F)c1)C(=O)c1cc(O)nc2ccccc12
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?