Description: Peptide to Cholecystokinin Octapeptide (1-4) (desulfated) Form: Lyophilized powder CAS Number : 80790-40-5Molecular Formula : C20H28N4O8SMolecular Weight : 484.53Purity : > 95%Chemical Structure : Asp-Tyr-Met-GlyStorage/Stability : Shipped at 4°C. Store at -20°C for one year.