Cc1ccc(N2C(=O)/C(=C3\Sc4c(nc(C)[nH]c4=O)N3c3ccccc3)SC2=S)cc1
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?