Cc1ccc(C)c(N2C(=O)C(=O)C(c3nc4ccccc4s3)/C(=N/NC(=O)NN)C2=O)c1
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?