Cc1ccccc1-n1c(SCC(=O)Nc2ccc(Cl)cc2F)nnc1-c1cc2occc2n1C
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?