CCOC(=O)CCC(C(=O)OCC)n1nnc2ccc(Nc3c(C)[n+]([O-])c4cc(F)c(OCC)cc4[n+]3[O-])cc21
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?