Cc1oc(-c2ccc(Cl)cc2)nc1C[S+]([O-])CC(=O)NC1CCCCCC1
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?