Cc1c(N/N=C2/C(=O)NC(=O)N(Cc3ccccc3)C2=O)c(=O)n(-c2ccccc2)n1C
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?