CCOC(=O)c1ccccc1NC(=O)Cn1cc(C(=O)c2cccc(OC)c2)c(=O)c2ccc(C)nc21
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?