Cc1ccc(Oc2ccc(S(=O)(=O)N3CCOCC3)cc2C(N)=O)c(-n2nc3ccccc3n2)c1
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?