CCCn1c(N)c(N(C)C)c(=O)n(CC(=O)Nc2ccc(OC(F)(F)F)cc2)c1=O
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?