CCOC(=O)c1nc2cc3n(c(C)c-2c1C)C(C)C(CC)=C3C.Cl
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?