Cc1cc(C(F)(F)F)n(-c2nc(C(=O)NNS(=O)(=O)c3ccccc3[N+](=O)[O-])cs2)n1
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?