COC(=O)NN1C(C)=C(C(=O)OC)C2(CCOC2=O)C1(C)O
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?