Cc1ccc(NC(=O)C2CCCN(S(=O)(=O)c3ccc4c(c3)oc(=O)n4C)C2)nc1
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?