Cc1cc(NC(=O)Nc2ccc(-c3cccc4[nH]nc(N)c34)c(F)c2)ccc1F
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?