CN(C)c1ccc(C=NNc2nc3c(=O)n(C)c(=O)n(C)c3[nH]2)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?