CN(C)CC(=O)Nc1n[nH]c2ccc(-c3cn(Cc4ccccc4)nn3)cc12
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 pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the pka value of this molecule?