CC(C)CC(CO)NC(=O)c1cccc(-n2nc(C(C)(C)C)cc2NC(=O)Nc2cccc3ccccc23)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?