CCN(CC)S(=O)(=O)c1ccc(NC(=O)COC(=O)CNS(=O)(=O)/C=C/c2ccccc2)cc1
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?