CC(=O)NC1(NC(C)=O)C2CC(C1Cc1ccccc1)C(C)(C)C2C
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?