Cc1cccc(OCC(=O)Nc2c3c(nn2C(C)(C)C)CS(=O)(=O)C3)c1
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?