Caspase inhibitor. Irreversible and cell permeable broad-spectrum caspase inhibitor. Inhibits Fas-mediated apoptosis in Jurkat T cells and apoptosis in THP.1 cells induced by diverse stimuli (including cycloheximide, thapsigargin, etoposide and staurosporine). For cell free assays use Prod. No. ALX-260-020. Alternative Name: Caspase family inhibitor (fluoromethylketone). Formula: C22H30N3O7F. MW: 467.5. CAS: 187389-52-2. Purity: ≥95%. Sequence Z-Val-Ala-Asp(OMe)-fluoromethylketone. Appearance: White to off-white solid. Solubility: Soluble in DMSO (>10mg/ml), dimethyl formamide (7mg/ml) or 100% ethanol (1.3mg/ml). Long Term Storage: -20°C. Use/Stability: Stable for up to 1 year after receipt when stored at -20°C. Stock solutions should be divided into aliquots and stored at -20°C for up to 1 month. Handling: Keep cool and dry.