COCCCN1C2=C(C(=O)CC(C)(C)C2)C(c2ccc(O)c(OC)c2)C2=C1CC(C)(C)CC2=O
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?