CC1(C)[C@@H]2CC[C@@](C)(C2)[C@H]1OC(=O)c1ccccc1C(=O)O
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?