Cc1cccn2c(=O)c(/C=C(\C#N)C(=O)NCc3ccco3)c(N3CCCCCC3)nc12
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?