CC[C@H](NC(=O)[C@H](C)NC)C(=O)N1CCC[C@H]1C(=O)Nc1c(C)ccc2ncccc12.O=CO.O=CO
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?