CS(=O)(=O)OCC1OC(n2ccc(NC(=O)c3ccccc3)nc2=O)CC1OS(C)(=O)=O
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?