COC(=O)/C=C/c1ccc2c(c1)S(=O)(=O)N(C1CCCC1)[C@H]2CC(=O)OC
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 pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the pka value of this molecule?