CC1=C(C)CC(C(=O)N2CCN(Cc3ccc4c(c3)OCO4)CC2)C(C(=O)O)C1
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?