CCN(Cc1ccccc1)C(=O)CCNS(=O)(=O)c1ccc2c(c1)CC(C)N2C(C)=O
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?