Cn1c(N)c(N2CCCCC2)c(=O)n(CC(=O)Nc2cccc(C#N)c2)c1=O
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?