Cc1c2c(c(O)c3c(O)cccc13)C(=O)C1(O)C(=O)C(C(=O)NCNc3ccc(C(N)=O)cn3)=C(O)C(N(C)C)C1C2.Cl
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?