C/C=C(\C)C(=O)O[C@@H]([C@H](O)c1cc2ccc(=O)oc2cc1OC)C(C)(C)O
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?