Description: Peptide to 4A/4B, Peptide (1) Form: Lyophilized powder Molecular Formula : C67H100N16O25S2Molecular Weight : 1593.76Purity : > 95%Chemical Structure : Asp-Glu-Met-Glu-Glu-Cys-Ser-Gln-His-Leu-Pro-Tyr-IleStorage/Stability : Shipped at 4°C. Store at -20°C for one year.