O=c1n(-c2ccccc2)c(=O)n2n1CC[C@H]1/C(=N\OCc3ccccc3)[C@H]3O[C@@H]3[C@@H](O)[C@@H]12
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?