Cc1cc(OC(=O)c2cc(C(F)(F)F)cc(C(F)(F)F)c2)c([N+](=O)[O-])c(O)n1
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?