Cc1ccc(NC(=O)N2CCc3cc(S(=O)(=O)N4CCC(C)CC4)ccc32)cc1F
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?