Cc1c2c(c(C)n1C)C(C(=O)NC1CCCCC1)N(Cc1ccccc1)C2=O
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?