Z-YVAD-pNACaspase-1 substrateChromogenic substrate for caspase-1 with increased cell permeability. λmax of pNA is 400nm.Product SpecificationAlternative Name: Caspase-1 substrate (chromogenic) Sequence: Z-Tyr-Val-Ala-Asp-pNA (pNA = p-Nitroaniline) Formula: C35H40N6O11 MW: 720.7 Formulation: Lyophilized. TFA salt. Peptide Content: 70-90% Purity: ≥97% (HPLC) Appearance: White powder. Solubility: Soluble in DMSO. Can be diluted with basic buffers. Long Term Storage: -20°C Handling: Keep cool and dry.