CC(=O)c1ccc(N2CCN(CC(=O)N(CC(C)C)c3c(N)n(CC(C)C)c(=O)[nH]c3=O)CC2)cc1
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?