(1S,2S,3R,4R)-3-((1S)-1-acetylamino-2-ethylbutyl))-4-((aminoiminomethyl)amino-2-hydroxycyclopentanecarboxylic acid, trihydrate
3-(1'-acetylamino-2'-ethyl)butyl-4-((aminoimino)methyl)amino-2-hydroxycyclopentane-1-carboxylic acid