N,N'-Diethylethylenediamine is used as an internal standard in liquid chromatographic method used for checking the assay of ethambutol. It is utilized for the solvation of lithium hexamethyldisilazide. It acts as a ligand and form coordination complexes such as trans-diaquabis(N,N'-diethylethylenediamine)nickel(II) chloride and copper(II)-N,N-Diethylethylenediamine, which shows thermochromic properties. Further, it is used as a pharmaceutical intermediate used in the synthesis of procainamide hydrochloride, tiapride and cinchocaine.
