CC(C)Oc1ccc(C(=O)C2=C(O)C(=O)N(CCN3CCNCC3)C2c2cccc([N+](=O)[O-])c2)cc1
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?