Cc1nn2c(=O)c(Cc3ccc(C(C)C)cc3)c(C)[nH]c2c1-c1ccccc1
The negative base-10 logarithmic of dissociation constant (pka) for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the pKa value is directly proportional to the standard Gibbs free energy change for the reaction. What is the pka value of this molecule?