Cc1cc2oc(C(=O)Nc3ccc(S(=O)(=O)Nc4onc(C)c4C)cc3)cc(=O)c2cc1Cl
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?