CC(C)N1C(=O)NC(=O)C2(Cc3cc([N+](=O)[O-])ccc3N(C)C2c2ccccc2)C1=O
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?