H-Nle-RF-NH2 MOLLUSCAN CARDIOEXCITATORY NEUROPEPTIDE ANALOG NLE-ARG-PHE AMIDE NLE-ARG-PHE-NH2 Nle-Arg-Phe amide >=95% (HPLC) L-Phenylalaninamide,L-norleucyl-L-arginyl-,diacetate H-Nle-Arg-Phe-NH2 acetate salt