CCCCCC(=O)Cc1cc(OC)cc2c1C(=O)Oc1cc(O)c(C(=O)O)c(CC(=O)CCCCC)c1O2
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?