CCCN(CC(=O)Nc1ccccc1C)C(=O)c1oc2ccc(OCC)cc2c1C
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?