Description: Peptide to Beta-Endorphin (18-31) (Human) Form: Lyophilized powder CAS Number : 74216-35-6Molecular Formula : C75H122N20O20Molecular Weight : 1623.93Purity : > 95%Chemical Structure : Phe-Lys-Asn-Ala-Ile-Ile-Lys-Asn-Ala-Tyr-Lys-Lys-Gly-GluStorage/Stability : Shipped at 4°C. Store at -20°C for one year.