CCN(CC)S(=O)(=O)c1ccc(N2CCN(C)CC2)c(NC(=O)Nc2ccccc2F)c1
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?