CCOC(=O)Cn1nnnc1CN(Cc1ccc(OC)cc1)Cc1cc2cc(CC)ccc2nc1O
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?