CC(C)(C)c1cc(NC(=O)CSc2nnc(NCc3ccccc3)s2)n(-c2ccccc2)n1
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 pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the pka value of this molecule?