L-Leucine ethyl ester hydrochloride is used as an organic chemical synthesis intermediate.
K.S.Chio; Aloys L.Tappel. Synthesis and characterization of the fluorescent products derived from malonaldehyde and amino acids. Biochemistry. 1969, 8,(7), 2821-2827.
Robert L.Letsinger; Milton J.Kornet. Popcorn polymer as a support in multistep syntheses. J. Am. Chem. Soc. 1963, 85,(19), 3045-3046.