CC(Oc1ccc2c3c(c(=O)oc2c1)CCC3)C(=O)NCC1CCC(C(=O)O)CC1
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?