CCc1cc(C(=O)OC)c(NC(=O)CN2CCN(C(=O)c3ccco3)CC2)s1
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?