Cc1ccc(NC(=O)C(=O)C(C(=O)c2ccc3ccccc3c2)C2OC(=O)c3ccccc32)c(C)c1
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?