Description: Peptide to 4B/5A Peptide Form: Lyophilized powder Molecular Formula : C59H91N17O22S2Molecular Weight : 1454.6Purity : > 95%Chemical Structure : Glu-Cys-Thr-Thr-Pro-Cys-Ser-Gly-Ser-Trp-Leu-Arg-AspStorage/Stability : Shipped at 4°C. Store at -20°C for one year.