99566-27-5 F-8-F-Amide F-8-F-NH2 F8Famide FF8 (Morphine modulating peptide) Flfqpqrf-NH2 Fmrfamide-like octapeptide L-Phenylalaninamide, L-phenylalanyl-L-leucyl-L-phenylalanyl-L-glutaminyl-L-prolyl-L-glutaminyl-L-arginyl- Morphine modulating neuropeptide NPFF Neuropeptide FF Octapeptide F8FA Phe-leu-phe-gln-pro-gln-arg-phe-NH2 phenylalanyl-leucyl-phenylalanyl-glutaminyl-prolyl-glutaminyl-arginyl-phenylalaninamide