Not less than 95.0%
L-Arginine mono[(2S,3aS,7aS)-1-[(2S)-2-[[(1S)-1-(ethoxycarbonyl)butyl]amino]-1-oxopropyl]octahydro-1H-indole-2-carboxylate]; L-Arginine Compound with (2S,3aS,7aS)-1-(((S)-1-ethoxy-1-oxopentan-2-yl)-L-alanyl)octahydro-1H-indole-2-carboxylic acid (1:1)