Cc1ccc(C)c(SCC(=O)OCC(=O)Nc2ncc(C(F)(F)F)cc2Cl)c1
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?