Potent and selective irreversible cell permeable cathepsin B inhibitor. Methyl ester (Me) is hydrolyzed by intracellular esterases releasing the active inhibitor. Prevents death of CA1 neurons after ischemia following IV delivery after the ischemic insult. In isolated rat osteoclasts it inhibited bone resorption with a maximal effect at 50 µM. This product is only suitable for in vivo and whole cell experiments. The free acid form must be used for in vitro experiments. Can be used to discriminate between cathepsin B and L/S forms.

• Cathepsin inhibitor

White solid.

Soluble in DMSO.