CC1=C(C(=O)Nc2cc(=O)n(C)c(=O)n2C)C(c2ccco2)C(C(=O)Nc2cc(=O)n(C)c(=O)n2C)=C(C)N1
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?