Cc1nn(CC(=O)OCC(=O)NC(C)c2ccccc2)c(C)c1[N+](=O)[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?