CC(c1ccco1)N(C(=O)COc1ccccc1[N+](=O)[O-])c1ccccn1
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?