英文别名(2S)-2-[[(2S)-2-[[2-[[(2S)-2-[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]propanoyl]amino]acetyl]amino]-3-phenylpropanoyl]amino]-4-methylpentanoic acid; L-Leucine,L-tyrosyl-L-alanylglycyl-L-phenylalanyl; (ala2)-leucine enkephalin; (alanine2)leucine enkephalin; (Ala2)-Leu-Enkephalin; L-Leucine, L-tyrosyl-L-alanylglycyl-L-phenylalanyl-; Tyrosylalanylglycylphenylalanylleucine 
