Cc1ccc(NC(=O)CSc2nc3ccccc3c3nc(CCn4c(C)nc5ccccc54)nn23)cc1F
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?