CC(C)CCNC(=O)c1ccc2c(c1)NC(=O)C(CS(=O)(=O)Cc1cccc(Br)c1)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 negative pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the negative pKa value of this molecule?