CCN(Cc1nc(O)c2ccccc2n1)Cc1nc(O)c2cc(OC)c(OC)cc2n1
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?