CCCOc1ccccc1N=C(Nc1nc(C)cc(C)n1)NS(=O)(=O)c1ccc(C)cc1
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?