CN(C)c1ccc(-c2ccnc3c2CC(C)(C(=O)NCc2cccs2)O3)cc1
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?