CC(C)c1nnc(N2C(=O)c3oc4ccccc4c(=O)c3C2c2ccc(O)cc2)s1
An acid's negative base-10 logarithmic dissociation constant (pka) follows directly from its underlying thermodynamics; pKa is directly proportional to its standard Gibbs free energy change. What is the pka value of this molecule?