C=C1C(=O)C23C(O)C1CCC2C12CCCC(C)(COC(C)=O)C1C(O)C3(O)OC2
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?