CCCCn1c(=O)n(CC(=O)Nc2ccc(OC)c(Cl)c2)c(=O)c2c1nc(CO)n2CCC
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?