CC1=C2C(=O)c3ccccc3C(=O)[C@H]2C[C@@H](N2CCCCCC2=O)O1
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?