CCOc1ccc(-n2c(=S)sc3c(=O)n(-c4ccc(F)cc4)c(SCC(=O)O)nc32)cc1
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?