Cc1ccc(S(=O)(=O)CCC(=O)N(CCN2CCOCC2)c2nc3ccccc3s2)cc1.Cl
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?