CC(Cn1c2c(c3cc(O)ccc31)CCc1ccc(O)cc1-2)N(C)C
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?