CSCCC(NS(=O)(=O)c1ccc2c(c1)oc(=O)n2C)C(=O)N1CCN(c2cc(C)ccc2C)CC1
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?