2-Ala-N-(2-((4-azido-2-nitrophenyl)amino)N-ethyl(5))-leu-enkephalinamide 83544-71-2 ENAPE Enkephalinamide-leu, ala(2)-N-(2-((4-azido-2-nitrophenyl)amino)N-ethyl(5))- Enkephalinamide-leu, alanine(2)-N-(2-((4-azido-2-nitrophenyl)amino)N-ethyl(5))- L-Leucinamide, L-tyrosyl-D-alanylglycyl-L-phenylalanyl-N-(2-((4-azido-2-nitrophenyl)amino)ethyl)-, (2S-(1(R*(R*)),2R*))- Leu-enkephalinamide, ala(2)-N-(2-((4-azido-2-nitrophenyl)amino)N-ethyl(5))- Leucine-enkephalinamide, ala(2)-N-(2-((4-azido-2-nitrophenyl)amino)N-ethyl(5))-