117397-68-9 Alanine, L-tyrosylglycylglycyl-L-phenylalanyl-L-leucylglycyl-L-prolyl-L-lysyl-2-methylalanyl-L-leucyl-2-methylalanyl-L-lysyl-2-methylalanyl-L-leucyl-2-methyl-, methyl ester Enk-A'8 Enkephalin-leu, gly-pro-(lys-aib-leu-aib)(2)-ome- Gly-pro-(lys-aib-leu-aib)2-ome-leu-enkephalin L-Tyrosylglycylglycyl-L-phenylalanyl-L-leucylglycyl-L-prolyl-L-lysyl-2-methylalanyl-L-leucyl-2-methylalanyl-L-lysyl-2-methylalanyl-L-leucyl-2-methylalanine methyl ester Leucine-enkephalin, gly-pro-(lys-aib-leu-aib)2-ome- Leucine-enkephalin, glycyl-prolyl-(lysyl-2-aminobutyric acid-leucyl-2-aminobutyric acid)2-methoxy- Yggflgp(KA'LA')2-ome