Cc1c(C(=O)O)c(O)cc2c1C(=O)c1c(O)c(O[C@H]3OC(CO)C(O)C(O)C3O)c(O)c(O)c1C2=O
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?