Cc1ccc2c(c1)c1c(n2CC(O)CN2C(=O)CNC2=O)C(=O)CCC1
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?