Cc1cc(C)c2c(CC(=O)Nc3c(C(=O)c4ccc(F)cc4)oc4ccccc34)coc2c1
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?