O=C(Cn1c(=O)n(Cc2ccco2)c(=O)c2sc3ccccc3c21)Nc1ccccc1C(F)(F)F
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?