CN(CC(=O)O)S(=O)(=O)c1ccc2c(c1)n(C)c(=O)c(=O)n2C
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?