CC1=NN(c2ccc(C)cc2C)C(=O)C1C(c1cccc(O)c1)C1C(=O)N(c2ccc(C)cc2C)N=C1C
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?