Cc1nc(SCC(=O)Nc2ccc(C)c(F)c2)c2oc3ccccc3c2n1
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?