Cc1onc(-c2ccccc2Cl)c1C(=O)NCc1nc(-c2ccc(C(F)(F)F)cc2)no1
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?