Cc1cc2c(cc1S(=O)(=O)N1CCN(c3cccc(C)c3C)CC1)OCC(=O)N2
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?