O[C@@H]1[C@H](OC2c3ccccc3-c3ccccc32)[C@H](OCc2ccccc2)[C@@H]2OC[C@H]1O2
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?