The molecule is a tripeptide composed of N-acetylleucyl, leucyl and norleucinal residues joined in sequence. It has a role as a cysteine protease inhibitor. It is a tripeptide and an aldehyde.
(2S)-2-acetamido-4-methyl-N-[(2S)-4-methyl-1-oxo-1-[[(2S)-1-oxohexan-2-yl]amino]pentan-2-yl]pentanamide