Cc1ccc(S(=O)(=O)NC(C(=O)OCC(=O)NC(=O)c2cccn2C)C(C)C)cc1
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?