COC(=O)/C(N=Nc1c(C)n(C)n(-c2ccccc2)c1=O)=C(/O)OC
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?