Cc1cc(C)c(-c2cc(C(=O)Nc3cc(C)ccc3C)n[nH]2)c(O)c1
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?