COc1cc2c3cc1Oc1c(OC)c(OC)cc4c1C(Cc1cccc(c1)Oc1ccc(c(O)c1)CC3N(C)CC2)N(C)CC4.Cl.Cl
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?