Cc1cc(C)c(NC(=O)Cn2c(=O)n(Cc3ccc4c(c3)OCO4)c(=O)c3ccc(C(=O)NC4CCCCC4)cc32)c(C)c1
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?