CCCCOc1ccc(CC(NC(=O)OC(C)(C)C)C(=O)NC(C)C(=O)NC(Cc2ccccc2)C(=O)NCC(N)=O)cc1
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?