CC1CCC2C(=O)N(c3ccc(NC4CCN(Cc5ccccc5)CC4)c([N+](=O)[O-])c3)C(=O)C2C1
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?