CCC(C)/C=C/C1=CC2=C(Cl)C(=O)C3(C)OC(=O)C(C(=O)C(C)C(C)O)C3C2=CO1
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?