Description: Peptide to Beta-Endorphin (27-31) (Human) Form: Lyophilized powder CAS Number : 77875-70-8Molecular Formula : C28H45N7O9Molecular Weight : 623.71Purity : > 95%Chemical Structure : Tyr-Lys-Lys-Gly-GluStorage/Stability : Shipped at 4°C. Store at -20°C for one year.