CCN(CC)CCN1C(=O)C(O)=C(C(=O)c2ccc(S(=O)(=O)N3CCOCC3)cc2)C1c1ccc(C(C)(C)C)cc1
An acid's negative base-10 logarithmic dissociation constant (pKa) follows directly from its underlying thermodynamics; the negative pKa is directly proportional to its standard Gibbs free energy change. What is the negative pKa value of this molecule?