CC(C)(C)c1nc2cc(NS(=O)(=O)c3ccc(F)c(F)c3F)ccc2[nH]1
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?