tert-Butyl 4-(2-(2-Oxoimidazolidin-1-yl)ethyl)piperazine-1-carboxylate is an intermediate in the synthesis of N1-[2-(1-Piperazinyl)ethyl]-1,2-ethanediamine (P481230), which is an impurity of Diethylenetriamine (D444255); a compound that is used in biological studies for polyamines inhibition to carbonic anhydrases by anchoring to the zinc-coordinated water molecule.