Cc1cc(OC(C)C(=O)Nc2c(C(=O)c3ccc(F)cc3)oc3ccccc23)ccc1Cl
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?