89444-58-6 L-Methioninamide, L-phenylalanyl-L-prolyl-L-prolyl-L-tryptophyl- Met(5)-pentatryptophyllin-5-amide PPPTM Phe-pro-pro-trp-met-NH2 Phenylalanyl-prolyl-prolyl-tryptophyl-methioninamide