C=C1C(=O)[C@@]23[C@@H](C[C@H](O)[C@@H]1[C@H]2O)[C@@]1(C)[C@@H](O)CCC(C)(C)[C@H]1C[C@H]3O
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?