CC(=O)N1CC(C)Oc2ccc(S(=O)(=O)NC(CC(=O)O)c3ccccc3)cc21
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?