Cc1cc(Cl)c(S(=O)(=O)Nc2cc(S(=O)(=O)N3CCOCC3)ccc2F)cc1OCC(N)=O
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?