CCN(CC)S(=O)(=O)c1ccc2nc(O)cc(C(=O)Nc3ccc(C)c(S(=O)(=O)N(CC)CC)c3)c2c1
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?