(R)-Ornithine hydrochloride (CAS No 16682-12-5) is an amino acid derivative commonly utilized in biochemical and pharmacological research It originates from L-ornithine and plays a significant role in the urea cycle primarily targeting pathways involved in ammonia detoxification and metabolism The compound is often studied for its potential to modulate polyamine synthesis influencing cell proliferation and repair processes Its in vitro activity typically falls within the nanomolar to low micromolar range making it suitable for precise biochemical assays Common applications include studies in various cell models to explore metabolic and enzymatic activities as well as in animal models to assess its effects on ammonia levels and nitrogen balance It s also employed in drug screening processes for assessing therapeutic interventions targeting metabolic disorders Experimental concentrations typically depend on the specific research design