CC(C)CC1NC(=O)CCC(NC(=O)C(Cc2ccc(O)cc2)NC(=O)OCc2ccccc2)C(=O)NC(Cc2ccccc2)C(=O)NC(Cc2ccccc2)NC1=O
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?