Cc1c(/C=N\NC(=S)N2CCN(C(=S)N/N=C\c3c(C)n(C)n(-c4ccccc4)c3=O)CC2)c(=O)n(-c2ccccc2)n1C
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?