CC1CN(C(=O)COC(=O)c2cccc(NS(=O)(=O)c3ccccc3)c2)CC(C)O1
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?