Description: Peptide to Ac-IETD-pNA Form: Lyophilized powder CAS Number : 219138-21-3Molecular Formula : C27H38N6O12Molecular Weight : 638.6Purity : > 95%Chemical Structure : Ac-Ile-Glu-Thr-Asp-pNAApplication : The chromogenic substrate Ac-IETD-pNA corresponds to one of the cleavage sites of the inactive 32 kD caspase-3 precursor (amino acids 172-175).Storage/Stability : Shipped at 4°C. Store at -20°C for one year.