Cc1ccc(/C=C/c2onc(C)c2S(=O)(=O)N2CCC(C(=O)NCc3ccc(C)o3)CC2)cc1
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?