CCN1C(=O)/C(=C/c2ccc(OCc3ccc(C(=O)O)cc3)c(Cl)c2)NC1=S
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?