C=C1C(=O)C23CCC4C(C)(C(=O)OC)CCCC4(C)C2CCC1(O)C3
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?