CAS Number: 90052-57-6 Molecular Weight: 2550.19 Salt Form: TFA Purity: >95% Sequence (3-letter): Ser-Ser-Cys-Phe-Gly-Gly-Arg-Ile-Asp-Arg-Ile-Gly-Ala-Gln-Ser-Gly-Leu-Gly-Cys-Asn-Ser-Phe-Arg-Tyr-OH [Cys3-Cys19] Sequence (1-letter): SSCFGGRIDRIGAQSGLGCNSFRY-OH Storage: -20 ?C or below Atriopeptin III (AP III), a 24-amino acid fragment of rat atrial natriuretic peptide (ANP). It is a potent natriuretic/diuretic agent and vasodilator in normal rats.