COC(=O)C1=CN(Cc2ccc(OC)c(OC)c2)C=C(C(=O)OC)C1c1cccc(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?