Cc1cc(=O)oc2c3c(cc(OCC(=O)NCCC(=O)O)c12)OC(C)(C)CC3
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?