CCC(c1nnc(SCC(=O)Nc2ccc(Cl)cc2C(F)(F)F)n1C1CCCCC1)N(C)C
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?