| Product Name | PSI (Synonyms: Proteasome Inhibitor 1; Z-Ile-Glu(OtBu)-Ala-Leu-CHO) | 
|---|---|
| CAS | 158442-41-2 | 
| Formula | C32H50N4O8 | 
| MW | 618.76 | 
| Appearance | White to off-white powder | 
| Storage condition | Dry, dark and at 0 - 4 ℃ for short term (days to weeks) or -20 ℃ for long term (months to years). |