Description: Peptide to [Des-Tyr1]-Dynorphin A (1-8) Form: Lyophilized powder Molecular Formula : C37H63N13O8Molecular Weight : 818Purity : > 95%Chemical Structure : Gly-Gly-Phe-Leu-Arg-Arg-IleStorage/Stability : Shipped at 4°C. Store at -20°C for one year.