Cc1cccc(CNc2ccc(C(CC(N)=O)NC(=O)Cc3cccc4ccccc34)cc2[N+](=O)[O-])c1
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?