CSc1ccccc1NC(=O)c1ccc(N2CC3CC(C2)c2cccc(=O)n2C3)c(NC(=O)c2cccnc2)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?