O=C(NC1CCCCCC1)C1C(=O)N(C2CCCCCC2)C(=O)/C1=N\O
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?