CC(C)CN(C(=O)COC(=O)C1=COCCO1)c1c(N)n(Cc2ccccc2)c(=O)[nH]c1=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?