CCOc1ccc(C(=O)c2cn(CC(=O)Nc3ccc(C)c(C)c3)c3ccc(OCC)cc3c2=O)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?