Cc1cc2c(O)c(c1)CN(CC(=O)O)Cc1cc(C)cc(c1O)CN(CC(=O)O)Cc1cc(C)cc(c1O)CN(CC(=O)O)C2
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?