CC(C)Nc1nnc(SCC(=O)c2c(N)n(Cc3ccccc3)c(=O)n(C)c2=O)s1
The negative base-10 logarithmic of dissociation constant (pKa) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?