Nc1c(-c2ccc(NC(=O)Nc3cccc(C(F)(F)F)c3)cc2)cnc2c(-c3ccc4c(c3)OCO4)cnn12
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?