CC(C)(C)c1ccc(-n2ncc3c2CCCC3NC(=O)CCN2CCCCC2=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?