76960-26-4 Ala(2)-leu(5)-enkephalin chloromethyl ketone Alanine(2)-leucine(5) enkephalin chloromethyl ketone Alanine(2)-leucine(5)-enkephalin chloromethyl ketone Daleck L-Phenylalaninamide, L-tyrosyl-D-alanylglycyl-N-(1-(chloroacetyl)-3-methylbutyl)-, (S)- Tagplcmk Tyr-D-ala-gly-phe-leu-chloromethyl ketone Tyrosyl-alanyl-glycyl-phenylalanyl-leucine chloromethyl ketone