CC(C)C(NC(=O)OCC1c2ccccc2-c2ccccc21)C(=O)NC(CCC(=O)OC(C)(C)C)C(=O)OC(C)(C)C
The negative base-10 logarithmic of dissociation constant (pka) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the pka value of this molecule?