CN(CC(=O)Nc1ccccc1C(F)(F)F)C(=O)CSc1nnc(-c2ccncc2)n1C
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?