CC(=O)OCC1OC(OC(C)(C)CC/C=C(\C)[C@@H]2C/C=C(\C)CC/C=C(\C)CC2)C(O)C(O)C1OC(C)=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?