CC1(C)CC[C@]2(C(=O)O)C(O)C[C@@]3(C)C(=CCC4[C@]3(C)CCC3C(C)(C)C(O)CC[C@@]34C)C2C1
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?