CC(Oc1cc(F)ccc1[N+](=O)[O-])C(=O)N(C)CC(=O)Nc1ccccc1C(F)(F)F
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?