CC(C)N1CCc2c(sc(NC(=O)c3ccc(S(=O)(=O)N4CCOCC4)cc3)c2C(N)=O)C1
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?