2-Ala-leu-enkephalinamide 65189-64-2 D-ALE DALE Enkephalinamide-leu, alanine(2)- L-Leucinamide, L-tyrosyl-D-alanylglycyl-L-phenylalanyl- Leu-enkephalinamide, ala(2)- Leucine-enkephalinamide, ala(2)- enkephalinamide-Leu, Ala(2)-