Cc1cc(C)cc(NC(=O)Cn2cc(C(=O)c3ccccc3)c(=O)c3ccc(C)nc32)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?