CC1(C)CC(=O)C(C(=O)Cc2ccccc2[N+](=O)[O-])C(=O)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?