CC(C)C[C@H]1CN([C@@H](CC(C)C)CN2CCC[C@@H]2CN2C(=S)NC[C@@H]2Cc2ccc(O)cc2)C(=S)N1CC1CCCCC1
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?