Cc1c(C(c2ccccc2Cl)c2c(O)oc3ccccc3c2=O)c(=O)n(-c2ccccc2)n1C
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?