CC1Cc2cc(S(=O)(=O)CCC(=O)Nc3ccc(F)c(Cl)c3)ccc2N1C(=O)C1CC1
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?