N-[(1R,2R,4R)-1-(cyclohexylmethyl)-2-hydroxy-6-methyl-4-{[(2R)-2-methylbutyl]carbamoyl}heptyl]-3-(1H-imidazol-3-ium-4-y l)-N~2~-[3-naphthalen-1-yl-2-(naphthalen-1-ylmethyl)propanoyl]-L-alaninamide

P11838 — Endothiapepsin