O=C(CCN1CCOCC1)Nc1cc(C(=O)Nc2ccccc2F)ccc1N1CC2CC(C1)c1cccc(=O)n1C2
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?