CCCCOC(=O)C(NC(C(=O)OCCCC)c1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1)c1cc(C(C)(C)C)c(O)c(C(C)(C)C)c1
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?