The molecule is a cell permeable inhibitor for caspase proteases. It has a role as a protease inhibitor. It contains a biotinyl group.
(3S)-3-[[(2S)-2-[[(2S)-2-[5-[(3aS,4S,6aR)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoylamino]-3-methylbutanoyl]amino]propanoyl]amino]-5-fluoro-4-oxopentanoic acid