Cn1c(=O)n2n(c1=O)[C@@H]1[C@H](CC2)C(=O)[C@@H]2O[C@@H]2[C@H]1O
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?