Cc1cccc(NC(=O)CSCc2nc(O)c3nnn(Cc4ccc(F)cc4)c3n2)c1C
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?