80180-63-8 L-Phenylalanine, N-(N-(N-(N-formyl-L-methionyl)-L-leucyl)-L-phenylalanyl)- N-(N-(N-(N-Formyl-L-methionyl)-L-leucyl)-L-phenylalanyl)-L-phenylalanine N-Formyl-methionyl-leucyl-phenylalanyl-phenylalanine f-Met-leu-phe-phe fMLPP