CCOC(=O)c1cc(S(=O)(=O)N2CCN(c3cc(C)ccc3C)CC2)n[nH]1
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?