CCOc1ccccc1-n1c(=S)sc2c(=O)n(-c3ccc(F)cc3)c(SCC(=O)O)nc21
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?