CCCCCCCC(=O)Nc1cc(C(=O)NCc2ccc(C)cc2)ccc1N1CCC2(CC1)CC(c1ccccc1)=NO2
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?