CCn1cc(C(=O)OCC(=O)c2cc(C)n(-c3cccc(C(F)(F)F)c3)c2C)c(=O)c2ccc(C)nc21
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?