CCC[C@@H]1CC2=CC(=O)CC[C@]2(C)[C@@H]2CC[C@@]3(C)[C@H](CC[C@]3(O)CCC(=O)[O-])[C@H]12.[K+]
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?