CAS Number: 64704-41-2 Molecular Weight: 1421.79 Salt Form: TFA Purity: >96% Sequence (3-letter): Phe-Gly-Phe-Leu-Pro-Ile-Tyr-Arg-Arg-Pro-Ala-Ser-NH2 Sequence (1-letter): FGFLPIYRRPAS-NH2 Storage: -20 ?C or below Granuliberin R is a mast cell degranulating peptide originally isolated from the skin of frogs (Rana rugosa).