Cc1ccc(C)c(CN2C(=O)c3ccccc3S(=O)(=O)c3ccc(C(=O)Nc4ccccc4C(F)(F)F)cc32)c1
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?